21821478

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{9803}}^1$

素因数の和:9868

約数の個数: 32

約数和(自身を含む): 50823936

約数和(自身を除く): 29002458

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 53, 106, 159, 318, 371, 742, 1113, 2226, 9803, 19606, 29409, 58818, 68621, 137242, 205863, 411726, 519559, 1039118, 1558677, 3117354, 3636913, 7273826, 10910739, 21821478]

約数ペア:

[(1, 21821478), (2, 10910739), (3, 7273826), (6, 3636913), (7, 3117354), (14, 1558677), (21, 1039118), (42, 519559), (53, 411726), (106, 205863), (159, 137242), (318, 68621), (371, 58818), (742, 29409), (1113, 19606), (2226, 9803)]