21917790

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{27059}}^1$

素因数の和:27078

約数の個数: 40

約数和(自身を含む): 58936680

約数和(自身を除く): 37018890

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 27059, 54118, 81177, 135295, 162354, 243531, 270590, 405885, 487062, 730593, 811770, 1217655, 1461186, 2191779, 2435310, 3652965, 4383558, 7305930, 10958895, 21917790]

約数ペア:

[(1, 21917790), (2, 10958895), (3, 7305930), (5, 4383558), (6, 3652965), (9, 2435310), (10, 2191779), (15, 1461186), (18, 1217655), (27, 811770), (30, 730593), (45, 487062), (54, 405885), (81, 270590), (90, 243531), (135, 162354), (162, 135295), (270, 81177), (405, 54118), (810, 27059)]