21261954

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{10771}}^1$

素因数の和:10830

約数の個数: 32

約数和(自身を含む): 49637376

約数和(自身を除く): 28375422

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 94, 141, 282, 329, 658, 987, 1974, 10771, 21542, 32313, 64626, 75397, 150794, 226191, 452382, 506237, 1012474, 1518711, 3037422, 3543659, 7087318, 10630977, 21261954]

約数ペア:

[(1, 21261954), (2, 10630977), (3, 7087318), (6, 3543659), (7, 3037422), (14, 1518711), (21, 1012474), (42, 506237), (47, 452382), (94, 226191), (141, 150794), (282, 75397), (329, 64626), (658, 32313), (987, 21542), (1974, 10771)]