21001460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3251}}^1$

素因数の和:3296

約数の個数: 48

約数和(自身を含む): 49170240

約数和(自身を除く): 28168780

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 3230, 3251, 6460, 6502, 13004, 16255, 32510, 55267, 61769, 65020, 110534, 123538, 221068, 247076, 276335, 308845, 552670, 617690, 1050073, 1105340, 1235380, 2100146, 4200292, 5250365, 10500730, 21001460]

約数ペア:

[(1, 21001460), (2, 10500730), (4, 5250365), (5, 4200292), (10, 2100146), (17, 1235380), (19, 1105340), (20, 1050073), (34, 617690), (38, 552670), (68, 308845), (76, 276335), (85, 247076), (95, 221068), (170, 123538), (190, 110534), (323, 65020), (340, 61769), (380, 55267), (646, 32510), (1292, 16255), (1615, 13004), (3230, 6502), (3251, 6460)]