20762898

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 47295360

約数和(自身を除く): 26532462

約数列:

[1, 2, 3, 6, 13, 26, 29, 39, 58, 67, 78, 87, 134, 137, 174, 201, 274, 377, 402, 411, 754, 822, 871, 1131, 1742, 1781, 1943, 2262, 2613, 3562, 3886, 3973, 5226, 5343, 5829, 7946, 9179, 10686, 11658, 11919, 18358, 23838, 25259, 27537, 50518, 51649, 55074, 75777, 103298, 119327, 151554, 154947, 238654, 266191, 309894, 357981, 532382, 715962, 798573, 1597146, 3460483, 6920966, 10381449, 20762898]

約数ペア:

[(1, 20762898), (2, 10381449), (3, 6920966), (6, 3460483), (13, 1597146), (26, 798573), (29, 715962), (39, 532382), (58, 357981), (67, 309894), (78, 266191), (87, 238654), (134, 154947), (137, 151554), (174, 119327), (201, 103298), (274, 75777), (377, 55074), (402, 51649), (411, 50518), (754, 27537), (822, 25259), (871, 23838), (1131, 18358), (1742, 11919), (1781, 11658), (1943, 10686), (2262, 9179), (2613, 7946), (3562, 5829), (3886, 5343), (3973, 5226)]