21613400

素因数分解:

$2^3\times 5^2\times {\mathrm{53}}^1\times {\mathrm{2039}}^1$

素因数の和:2108

約数の個数: 48

約数和(自身を含む): 51224400

約数和(自身を除く): 29611000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 53, 100, 106, 200, 212, 265, 424, 530, 1060, 1325, 2039, 2120, 2650, 4078, 5300, 8156, 10195, 10600, 16312, 20390, 40780, 50975, 81560, 101950, 108067, 203900, 216134, 407800, 432268, 540335, 864536, 1080670, 2161340, 2701675, 4322680, 5403350, 10806700, 21613400]

約数ペア:

[(1, 21613400), (2, 10806700), (4, 5403350), (5, 4322680), (8, 2701675), (10, 2161340), (20, 1080670), (25, 864536), (40, 540335), (50, 432268), (53, 407800), (100, 216134), (106, 203900), (200, 108067), (212, 101950), (265, 81560), (424, 50975), (530, 40780), (1060, 20390), (1325, 16312), (2039, 10600), (2120, 10195), (2650, 8156), (4078, 5300)]