21491064

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{42641}}^1$

素因数の和:42660

約数の個数: 48

約数和(自身を含む): 66521520

約数和(自身を除く): 45030456

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, 42641, 85282, 127923, 170564, 255846, 298487, 341128, 383769, 511692, 596974, 767538, 895461, 1023384, 1193948, 1535076, 1790922, 2387896, 2686383, 3070152, 3581844, 5372766, 7163688, 10745532, 21491064]

約数ペア:

[(1, 21491064), (2, 10745532), (3, 7163688), (4, 5372766), (6, 3581844), (7, 3070152), (8, 2686383), (9, 2387896), (12, 1790922), (14, 1535076), (18, 1193948), (21, 1023384), (24, 895461), (28, 767538), (36, 596974), (42, 511692), (56, 383769), (63, 341128), (72, 298487), (84, 255846), (126, 170564), (168, 127923), (252, 85282), (504, 42641)]