21754278486

素因数分解:

$2^1\times 3^3\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{257}}^1\times {\mathrm{283}}^1$

素因数の和:771

約数の個数: 128

約数和(自身を含む): 50645606400

約数和(自身を除く): 28891327914

約数列:

[1, 2, 3, 6, 9, 18, 27, 29, 54, 58, 87, 174, 191, 257, 261, 283, 382, 514, 522, 566, 573, 771, 783, 849, 1146, 1542, 1566, 1698, 1719, 2313, 2547, 3438, 4626, 5094, 5157, 5539, 6939, 7453, 7641, 8207, 10314, 11078, 13878, 14906, 15282, 16414, 16617, 22359, 24621, 33234, 44718, 49087, 49242, 49851, 54053, 67077, 72731, 73863, 98174, 99702, 108106, 134154, 145462, 147261, 147726, 149553, 162159, 201231, 218193, 221589, 294522, 299106, 324318, 402462, 436386, 441783, 443178, 486477, 654579, 883566, 972954, 1309158, 1325349, 1423523, 1459431, 1567537, 1963737, 2109199, 2650698, 2847046, 2918862, 3135074, 3927474, 4218398, 4270569, 4702611, 6327597, 8541138, 9405222, 12655194, 12811707, 13891621, 14107833, 18982791, 25623414, 27783242, 28215666, 37965582, 38435121, 41674863, 42323499, 56948373, 76870242, 83349726, 84646998, 113896746, 125024589, 250049178, 375073767, 402857009, 750147534, 805714018, 1208571027, 2417142054, 3625713081, 7251426162, 10877139243, 21754278486]

約数ペア:

[(1, 21754278486), (2, 10877139243), (3, 7251426162), (6, 3625713081), (9, 2417142054), (18, 1208571027), (27, 805714018), (29, 750147534), (54, 402857009), (58, 375073767), (87, 250049178), (174, 125024589), (191, 113896746), (257, 84646998), (261, 83349726), (283, 76870242), (382, 56948373), (514, 42323499), (522, 41674863), (566, 38435121), (573, 37965582), (771, 28215666), (783, 27783242), (849, 25623414), (1146, 18982791), (1542, 14107833), (1566, 13891621), (1698, 12811707), (1719, 12655194), (2313, 9405222), (2547, 8541138), (3438, 6327597), (4626, 4702611), (5094, 4270569), (5157, 4218398), (5539, 3927474), (6939, 3135074), (7453, 2918862), (7641, 2847046), (8207, 2650698), (10314, 2109199), (11078, 1963737), (13878, 1567537), (14906, 1459431), (15282, 1423523), (16414, 1325349), (16617, 1309158), (22359, 972954), (24621, 883566), (33234, 654579), (44718, 486477), (49087, 443178), (49242, 441783), (49851, 436386), (54053, 402462), (67077, 324318), (72731, 299106), (73863, 294522), (98174, 221589), (99702, 218193), (108106, 201231), (134154, 162159), (145462, 149553), (147261, 147726)]