21757540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{233}}^1$

素因数の和:301

約数の個数: 96

約数和(自身を含む): 56609280

約数和(自身を除く): 34851740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 29, 35, 46, 58, 70, 92, 115, 116, 140, 145, 161, 203, 230, 233, 290, 322, 406, 460, 466, 580, 644, 667, 805, 812, 932, 1015, 1165, 1334, 1610, 1631, 2030, 2330, 2668, 3220, 3262, 3335, 4060, 4660, 4669, 5359, 6524, 6670, 6757, 8155, 9338, 10718, 13340, 13514, 16310, 18676, 21436, 23345, 26795, 27028, 32620, 33785, 37513, 46690, 47299, 53590, 67570, 75026, 93380, 94598, 107180, 135140, 150052, 155411, 187565, 189196, 236495, 310822, 375130, 472990, 621644, 750260, 777055, 945980, 1087877, 1554110, 2175754, 3108220, 4351508, 5439385, 10878770, 21757540]

約数ペア:

[(1, 21757540), (2, 10878770), (4, 5439385), (5, 4351508), (7, 3108220), (10, 2175754), (14, 1554110), (20, 1087877), (23, 945980), (28, 777055), (29, 750260), (35, 621644), (46, 472990), (58, 375130), (70, 310822), (92, 236495), (115, 189196), (116, 187565), (140, 155411), (145, 150052), (161, 135140), (203, 107180), (230, 94598), (233, 93380), (290, 75026), (322, 67570), (406, 53590), (460, 47299), (466, 46690), (580, 37513), (644, 33785), (667, 32620), (805, 27028), (812, 26795), (932, 23345), (1015, 21436), (1165, 18676), (1334, 16310), (1610, 13514), (1631, 13340), (2030, 10718), (2330, 9338), (2668, 8155), (3220, 6757), (3262, 6670), (3335, 6524), (4060, 5359), (4660, 4669)]