21492772

素因数分解:

$2^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{2069}}^1$

素因数の和:2140

約数の個数: 36

約数和(自身を含む): 44600220

約数和(自身を除く): 23107448

約数列:

[1, 2, 4, 7, 14, 28, 49, 53, 98, 106, 196, 212, 371, 742, 1484, 2069, 2597, 4138, 5194, 8276, 10388, 14483, 28966, 57932, 101381, 109657, 202762, 219314, 405524, 438628, 767599, 1535198, 3070396, 5373193, 10746386, 21492772]

約数ペア:

[(1, 21492772), (2, 10746386), (4, 5373193), (7, 3070396), (14, 1535198), (28, 767599), (49, 438628), (53, 405524), (98, 219314), (106, 202762), (196, 109657), (212, 101381), (371, 57932), (742, 28966), (1484, 14483), (2069, 10388), (2597, 8276), (4138, 5194)]