201621445

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{953}}^1$

素因数の和:1125

約数の個数: 32

約数和(自身を含む): 272004480

約数和(自身を除く): 70383035

約数列:

[1, 5, 17, 19, 85, 95, 131, 323, 655, 953, 1615, 2227, 2489, 4765, 11135, 12445, 16201, 18107, 42313, 81005, 90535, 124843, 211565, 307819, 624215, 1539095, 2122331, 2372017, 10611655, 11860085, 40324289, 201621445]

約数ペア:

[(1, 201621445), (5, 40324289), (17, 11860085), (19, 10611655), (85, 2372017), (95, 2122331), (131, 1539095), (323, 624215), (655, 307819), (953, 211565), (1615, 124843), (2227, 90535), (2489, 81005), (4765, 42313), (11135, 18107), (12445, 16201)]