21480764

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{281}}^1\times {\mathrm{659}}^1$

素因数の和:973

約数の個数: 24

約数和(自身を含む): 39085200

約数和(自身を除く): 17604436

約数列:

[1, 2, 4, 29, 58, 116, 281, 562, 659, 1124, 1318, 2636, 8149, 16298, 19111, 32596, 38222, 76444, 185179, 370358, 740716, 5370191, 10740382, 21480764]

約数ペア:

[(1, 21480764), (2, 10740382), (4, 5370191), (29, 740716), (58, 370358), (116, 185179), (281, 76444), (562, 38222), (659, 32596), (1124, 19111), (1318, 16298), (2636, 8149)]