21905688

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1291}}^1$

素因数の和:1408

約数の個数: 64

約数和(自身を含む): 63256320

約数和(自身を除く): 41350632

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 101, 168, 202, 303, 404, 606, 707, 808, 1212, 1291, 1414, 2121, 2424, 2582, 2828, 3873, 4242, 5164, 5656, 7746, 8484, 9037, 10328, 15492, 16968, 18074, 27111, 30984, 36148, 54222, 72296, 108444, 130391, 216888, 260782, 391173, 521564, 782346, 912737, 1043128, 1564692, 1825474, 2738211, 3129384, 3650948, 5476422, 7301896, 10952844, 21905688]

約数ペア:

[(1, 21905688), (2, 10952844), (3, 7301896), (4, 5476422), (6, 3650948), (7, 3129384), (8, 2738211), (12, 1825474), (14, 1564692), (21, 1043128), (24, 912737), (28, 782346), (42, 521564), (56, 391173), (84, 260782), (101, 216888), (168, 130391), (202, 108444), (303, 72296), (404, 54222), (606, 36148), (707, 30984), (808, 27111), (1212, 18074), (1291, 16968), (1414, 15492), (2121, 10328), (2424, 9037), (2582, 8484), (2828, 7746), (3873, 5656), (4242, 5164)]