221931528

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{331}}^1$

素因数の和:667

約数の個数: 128

約数和(自身を含む): 687160320

約数和(自身を除く): 465228792

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 78, 84, 91, 104, 156, 168, 182, 273, 307, 312, 331, 364, 546, 614, 662, 728, 921, 993, 1092, 1228, 1324, 1842, 1986, 2149, 2184, 2317, 2456, 2648, 3684, 3972, 3991, 4298, 4303, 4634, 6447, 6951, 7368, 7944, 7982, 8596, 8606, 9268, 11973, 12894, 12909, 13902, 15964, 17192, 17212, 18536, 23946, 25788, 25818, 27804, 27937, 30121, 31928, 34424, 47892, 51576, 51636, 55608, 55874, 60242, 83811, 90363, 95784, 101617, 103272, 111748, 120484, 167622, 180726, 203234, 223496, 240968, 304851, 335244, 361452, 406468, 609702, 670488, 711319, 722904, 812936, 1219404, 1321021, 1422638, 2133957, 2438808, 2642042, 2845276, 3963063, 4267914, 5284084, 5690552, 7926126, 8535828, 9247147, 10568168, 15852252, 17071656, 18494294, 27741441, 31704504, 36988588, 55482882, 73977176, 110965764, 221931528]

約数ペア:

[(1, 221931528), (2, 110965764), (3, 73977176), (4, 55482882), (6, 36988588), (7, 31704504), (8, 27741441), (12, 18494294), (13, 17071656), (14, 15852252), (21, 10568168), (24, 9247147), (26, 8535828), (28, 7926126), (39, 5690552), (42, 5284084), (52, 4267914), (56, 3963063), (78, 2845276), (84, 2642042), (91, 2438808), (104, 2133957), (156, 1422638), (168, 1321021), (182, 1219404), (273, 812936), (307, 722904), (312, 711319), (331, 670488), (364, 609702), (546, 406468), (614, 361452), (662, 335244), (728, 304851), (921, 240968), (993, 223496), (1092, 203234), (1228, 180726), (1324, 167622), (1842, 120484), (1986, 111748), (2149, 103272), (2184, 101617), (2317, 95784), (2456, 90363), (2648, 83811), (3684, 60242), (3972, 55874), (3991, 55608), (4298, 51636), (4303, 51576), (4634, 47892), (6447, 34424), (6951, 31928), (7368, 30121), (7944, 27937), (7982, 27804), (8596, 25818), (8606, 25788), (9268, 23946), (11973, 18536), (12894, 17212), (12909, 17192), (13902, 15964)]