21202064

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{7841}}^1$

素因数の和:7875

約数の個数: 30

約数和(自身を含む): 44487666

約数和(自身を除く): 23285602

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 7841, 15682, 31364, 62728, 101933, 125456, 203866, 407732, 815464, 1325129, 1630928, 2650258, 5300516, 10601032, 21202064]

約数ペア:

[(1, 21202064), (2, 10601032), (4, 5300516), (8, 2650258), (13, 1630928), (16, 1325129), (26, 815464), (52, 407732), (104, 203866), (169, 125456), (208, 101933), (338, 62728), (676, 31364), (1352, 15682), (2704, 7841)]