21679860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{5393}}^1$

素因数の和:5472

約数の個数: 48

約数和(自身を含む): 61621056

約数和(自身を除く): 39941196

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 67, 134, 201, 268, 335, 402, 670, 804, 1005, 1340, 2010, 4020, 5393, 10786, 16179, 21572, 26965, 32358, 53930, 64716, 80895, 107860, 161790, 323580, 361331, 722662, 1083993, 1445324, 1806655, 2167986, 3613310, 4335972, 5419965, 7226620, 10839930, 21679860]

約数ペア:

[(1, 21679860), (2, 10839930), (3, 7226620), (4, 5419965), (5, 4335972), (6, 3613310), (10, 2167986), (12, 1806655), (15, 1445324), (20, 1083993), (30, 722662), (60, 361331), (67, 323580), (134, 161790), (201, 107860), (268, 80895), (335, 64716), (402, 53930), (670, 32358), (804, 26965), (1005, 21572), (1340, 16179), (2010, 10786), (4020, 5393)]