21712250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{653}}^1$

素因数の和:696

約数の個数: 64

約数和(自身を含む): 48971520

約数和(自身を除く): 27259270

約数列:

[1, 2, 5, 7, 10, 14, 19, 25, 35, 38, 50, 70, 95, 125, 133, 175, 190, 250, 266, 350, 475, 653, 665, 875, 950, 1306, 1330, 1750, 2375, 3265, 3325, 4571, 4750, 6530, 6650, 9142, 12407, 16325, 16625, 22855, 24814, 32650, 33250, 45710, 62035, 81625, 86849, 114275, 124070, 163250, 173698, 228550, 310175, 434245, 571375, 620350, 868490, 1142750, 1550875, 2171225, 3101750, 4342450, 10856125, 21712250]

約数ペア:

[(1, 21712250), (2, 10856125), (5, 4342450), (7, 3101750), (10, 2171225), (14, 1550875), (19, 1142750), (25, 868490), (35, 620350), (38, 571375), (50, 434245), (70, 310175), (95, 228550), (125, 173698), (133, 163250), (175, 124070), (190, 114275), (250, 86849), (266, 81625), (350, 62035), (475, 45710), (653, 33250), (665, 32650), (875, 24814), (950, 22855), (1306, 16625), (1330, 16325), (1750, 12407), (2375, 9142), (3265, 6650), (3325, 6530), (4571, 4750)]