21296308

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 43763328

約数和(自身を除く): 22467020

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 71, 142, 187, 284, 374, 401, 748, 781, 802, 1207, 1562, 1604, 2414, 3124, 4411, 4828, 6817, 8822, 13277, 13634, 17644, 26554, 27268, 28471, 53108, 56942, 74987, 113884, 149974, 299948, 313181, 484007, 626362, 968014, 1252724, 1936028, 5324077, 10648154, 21296308]

約数ペア:

[(1, 21296308), (2, 10648154), (4, 5324077), (11, 1936028), (17, 1252724), (22, 968014), (34, 626362), (44, 484007), (68, 313181), (71, 299948), (142, 149974), (187, 113884), (284, 74987), (374, 56942), (401, 53108), (748, 28471), (781, 27268), (802, 26554), (1207, 17644), (1562, 13634), (1604, 13277), (2414, 8822), (3124, 6817), (4411, 4828)]