20987064

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{41641}}^1$

素因数の和:41660

約数の個数: 48

約数和(自身を含む): 64961520

約数和(自身を除く): 43974456

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 41641, 83282, 124923, 166564, 249846, 291487, 333128, 374769, 499692, 582974, 749538, 874461, 999384, 1165948, 1499076, 1748922, 2331896, 2623383, 2998152, 3497844, 5246766, 6995688, 10493532, 20987064]

約数ペア:

[(1, 20987064), (2, 10493532), (3, 6995688), (4, 5246766), (6, 3497844), (7, 2998152), (8, 2623383), (9, 2331896), (12, 1748922), (14, 1499076), (18, 1165948), (21, 999384), (24, 874461), (28, 749538), (36, 582974), (42, 499692), (56, 374769), (63, 333128), (72, 291487), (84, 249846), (126, 166564), (168, 124923), (252, 83282), (504, 41641)]