21062150

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:449

約数の個数: 48

約数和(自身を含む): 42184800

約数和(自身を除く): 21122650

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 71, 85, 142, 170, 349, 355, 425, 698, 710, 850, 1207, 1745, 1775, 2414, 3490, 3550, 5933, 6035, 8725, 11866, 12070, 17450, 24779, 29665, 30175, 49558, 59330, 60350, 123895, 148325, 247790, 296650, 421243, 619475, 842486, 1238950, 2106215, 4212430, 10531075, 21062150]

約数ペア:

[(1, 21062150), (2, 10531075), (5, 4212430), (10, 2106215), (17, 1238950), (25, 842486), (34, 619475), (50, 421243), (71, 296650), (85, 247790), (142, 148325), (170, 123895), (349, 60350), (355, 59330), (425, 49558), (698, 30175), (710, 29665), (850, 24779), (1207, 17450), (1745, 12070), (1775, 11866), (2414, 8725), (3490, 6035), (3550, 5933)]