19717325

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{647}}^1$

素因数の和:733

約数の個数: 24

約数和(自身を含む): 26034048

約数和(自身を除く): 6316723

約数列:

[1, 5, 23, 25, 53, 115, 265, 575, 647, 1219, 1325, 3235, 6095, 14881, 16175, 30475, 34291, 74405, 171455, 372025, 788693, 857275, 3943465, 19717325]

約数ペア:

[(1, 19717325), (5, 3943465), (23, 857275), (25, 788693), (53, 372025), (115, 171455), (265, 74405), (575, 34291), (647, 30475), (1219, 16175), (1325, 14881), (3235, 6095)]