21626750

素因数分解:

$2^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 44366400

約数和(自身を除く): 22739650

約数列:

[1, 2, 5, 10, 19, 25, 29, 38, 50, 58, 95, 125, 145, 157, 190, 250, 290, 314, 475, 551, 725, 785, 950, 1102, 1450, 1570, 2375, 2755, 2983, 3625, 3925, 4553, 4750, 5510, 5966, 7250, 7850, 9106, 13775, 14915, 19625, 22765, 27550, 29830, 39250, 45530, 68875, 74575, 86507, 113825, 137750, 149150, 173014, 227650, 372875, 432535, 569125, 745750, 865070, 1138250, 2162675, 4325350, 10813375, 21626750]

約数ペア:

[(1, 21626750), (2, 10813375), (5, 4325350), (10, 2162675), (19, 1138250), (25, 865070), (29, 745750), (38, 569125), (50, 432535), (58, 372875), (95, 227650), (125, 173014), (145, 149150), (157, 137750), (190, 113825), (250, 86507), (290, 74575), (314, 68875), (475, 45530), (551, 39250), (725, 29830), (785, 27550), (950, 22765), (1102, 19625), (1450, 14915), (1570, 13775), (2375, 9106), (2755, 7850), (2983, 7250), (3625, 5966), (3925, 5510), (4553, 4750)]