21000340774

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{293}}^1\times {\mathrm{1777}}^1$

素因数の和:2189

約数の個数: 64

約数和(自身を含む): 37536339456

約数和(自身を除く): 16535998682

約数列:

[1, 2, 7, 14, 43, 67, 86, 134, 293, 301, 469, 586, 602, 938, 1777, 2051, 2881, 3554, 4102, 5762, 12439, 12599, 19631, 20167, 24878, 25198, 39262, 40334, 76411, 88193, 119059, 137417, 152822, 176386, 238118, 274834, 520661, 534877, 833413, 844133, 1041322, 1069754, 1666826, 1688266, 3644627, 5119537, 5908931, 7289254, 10239074, 11817862, 22388423, 34884287, 35836759, 44776846, 69768574, 71673518, 156718961, 244190009, 313437922, 488380018, 1500024341, 3000048682, 10500170387, 21000340774]

約数ペア:

[(1, 21000340774), (2, 10500170387), (7, 3000048682), (14, 1500024341), (43, 488380018), (67, 313437922), (86, 244190009), (134, 156718961), (293, 71673518), (301, 69768574), (469, 44776846), (586, 35836759), (602, 34884287), (938, 22388423), (1777, 11817862), (2051, 10239074), (2881, 7289254), (3554, 5908931), (4102, 5119537), (5762, 3644627), (12439, 1688266), (12599, 1666826), (19631, 1069754), (20167, 1041322), (24878, 844133), (25198, 833413), (39262, 534877), (40334, 520661), (76411, 274834), (88193, 238118), (119059, 176386), (137417, 152822)]