21992750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1$

素因数の和:198

約数の個数: 64

約数和(自身を含む): 45444672

約数和(自身を除く): 23451922

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 67, 101, 125, 130, 134, 202, 250, 325, 335, 505, 650, 670, 871, 1010, 1313, 1625, 1675, 1742, 2525, 2626, 3250, 3350, 4355, 5050, 6565, 6767, 8375, 8710, 12625, 13130, 13534, 16750, 21775, 25250, 32825, 33835, 43550, 65650, 67670, 87971, 108875, 164125, 169175, 175942, 217750, 328250, 338350, 439855, 845875, 879710, 1691750, 2199275, 4398550, 10996375, 21992750]

約数ペア:

[(1, 21992750), (2, 10996375), (5, 4398550), (10, 2199275), (13, 1691750), (25, 879710), (26, 845875), (50, 439855), (65, 338350), (67, 328250), (101, 217750), (125, 175942), (130, 169175), (134, 164125), (202, 108875), (250, 87971), (325, 67670), (335, 65650), (505, 43550), (650, 33835), (670, 32825), (871, 25250), (1010, 21775), (1313, 16750), (1625, 13534), (1675, 13130), (1742, 12625), (2525, 8710), (2626, 8375), (3250, 6767), (3350, 6565), (4355, 5050)]