21927620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1$

素因数の和:102

約数の個数: 144

約数和(自身を含む): 59122224

約数和(自身を除く): 37194604

約数列:

[1, 2, 4, 5, 10, 11, 13, 17, 20, 22, 26, 34, 41, 44, 52, 55, 65, 68, 82, 85, 110, 121, 130, 143, 164, 170, 187, 205, 220, 221, 242, 260, 286, 340, 374, 410, 442, 451, 484, 533, 572, 605, 697, 715, 748, 820, 884, 902, 935, 1066, 1105, 1210, 1394, 1430, 1573, 1804, 1870, 2057, 2132, 2210, 2255, 2420, 2431, 2665, 2788, 2860, 3146, 3485, 3740, 4114, 4420, 4510, 4862, 4961, 5330, 5863, 6292, 6970, 7667, 7865, 8228, 9020, 9061, 9724, 9922, 10285, 10660, 11726, 12155, 13940, 15334, 15730, 18122, 19844, 20570, 23452, 24310, 24805, 26741, 29315, 30668, 31460, 36244, 38335, 41140, 45305, 48620, 49610, 53482, 58630, 64493, 76670, 84337, 90610, 99220, 99671, 106964, 117260, 128986, 133705, 153340, 168674, 181220, 199342, 257972, 267410, 322465, 337348, 398684, 421685, 498355, 534820, 644930, 843370, 996710, 1096381, 1289860, 1686740, 1993420, 2192762, 4385524, 5481905, 10963810, 21927620]

約数ペア:

[(1, 21927620), (2, 10963810), (4, 5481905), (5, 4385524), (10, 2192762), (11, 1993420), (13, 1686740), (17, 1289860), (20, 1096381), (22, 996710), (26, 843370), (34, 644930), (41, 534820), (44, 498355), (52, 421685), (55, 398684), (65, 337348), (68, 322465), (82, 267410), (85, 257972), (110, 199342), (121, 181220), (130, 168674), (143, 153340), (164, 133705), (170, 128986), (187, 117260), (205, 106964), (220, 99671), (221, 99220), (242, 90610), (260, 84337), (286, 76670), (340, 64493), (374, 58630), (410, 53482), (442, 49610), (451, 48620), (484, 45305), (533, 41140), (572, 38335), (605, 36244), (697, 31460), (715, 30668), (748, 29315), (820, 26741), (884, 24805), (902, 24310), (935, 23452), (1066, 20570), (1105, 19844), (1210, 18122), (1394, 15730), (1430, 15334), (1573, 13940), (1804, 12155), (1870, 11726), (2057, 10660), (2132, 10285), (2210, 9922), (2255, 9724), (2420, 9061), (2431, 9020), (2665, 8228), (2788, 7865), (2860, 7667), (3146, 6970), (3485, 6292), (3740, 5863), (4114, 5330), (4420, 4961), (4510, 4862)]