21492250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:436

約数の個数: 64

約数和(自身を含む): 45995040

約数和(自身を除く): 24502790

約数列:

[1, 2, 5, 10, 13, 17, 25, 26, 34, 50, 65, 85, 125, 130, 170, 221, 250, 325, 389, 425, 442, 650, 778, 850, 1105, 1625, 1945, 2125, 2210, 3250, 3890, 4250, 5057, 5525, 6613, 9725, 10114, 11050, 13226, 19450, 25285, 27625, 33065, 48625, 50570, 55250, 66130, 85969, 97250, 126425, 165325, 171938, 252850, 330650, 429845, 632125, 826625, 859690, 1264250, 1653250, 2149225, 4298450, 10746125, 21492250]

約数ペア:

[(1, 21492250), (2, 10746125), (5, 4298450), (10, 2149225), (13, 1653250), (17, 1264250), (25, 859690), (26, 826625), (34, 632125), (50, 429845), (65, 330650), (85, 252850), (125, 171938), (130, 165325), (170, 126425), (221, 97250), (250, 85969), (325, 66130), (389, 55250), (425, 50570), (442, 48625), (650, 33065), (778, 27625), (850, 25285), (1105, 19450), (1625, 13226), (1945, 11050), (2125, 10114), (2210, 9725), (3250, 6613), (3890, 5525), (4250, 5057)]