21203677

素因数分解:

${\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1$

素因数の和:465

約数の個数: 24

約数和(自身を含む): 25663680

約数和(自身を除く): 4460003

約数列:

[1, 11, 19, 23, 121, 209, 253, 401, 437, 2299, 2783, 4411, 4807, 7619, 9223, 48521, 52877, 83809, 101453, 175237, 921899, 1115983, 1927607, 21203677]

約数ペア:

[(1, 21203677), (11, 1927607), (19, 1115983), (23, 921899), (121, 175237), (209, 101453), (253, 83809), (401, 52877), (437, 48521), (2299, 9223), (2783, 7619), (4411, 4807)]