21010415724

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{1361}}^1\times {\mathrm{10459}}^1$

素因数の和:11871

約数の個数: 72

約数和(自身を含む): 54450199440

約数和(自身を除く): 33439783716

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 82, 123, 164, 246, 369, 492, 738, 1361, 1476, 2722, 4083, 5444, 8166, 10459, 12249, 16332, 20918, 24498, 31377, 41836, 48996, 55801, 62754, 94131, 111602, 125508, 167403, 188262, 223204, 334806, 376524, 428819, 502209, 669612, 857638, 1004418, 1286457, 1715276, 2008836, 2572914, 3859371, 5145828, 7718742, 14234699, 15437484, 28469398, 42704097, 56938796, 85408194, 128112291, 170816388, 256224582, 512449164, 583622659, 1167245318, 1750867977, 2334490636, 3501735954, 5252603931, 7003471908, 10505207862, 21010415724]

約数ペア:

[(1, 21010415724), (2, 10505207862), (3, 7003471908), (4, 5252603931), (6, 3501735954), (9, 2334490636), (12, 1750867977), (18, 1167245318), (36, 583622659), (41, 512449164), (82, 256224582), (123, 170816388), (164, 128112291), (246, 85408194), (369, 56938796), (492, 42704097), (738, 28469398), (1361, 15437484), (1476, 14234699), (2722, 7718742), (4083, 5145828), (5444, 3859371), (8166, 2572914), (10459, 2008836), (12249, 1715276), (16332, 1286457), (20918, 1004418), (24498, 857638), (31377, 669612), (41836, 502209), (48996, 428819), (55801, 376524), (62754, 334806), (94131, 223204), (111602, 188262), (125508, 167403)]