21561150

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{11057}}^1$

素因数の和:11085

約数の個数: 48

約数和(自身を含む): 57590064

約数和(自身を除く): 36028914

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 11057, 22114, 33171, 55285, 66342, 110570, 143741, 165855, 276425, 287482, 331710, 431223, 552850, 718705, 829275, 862446, 1437410, 1658550, 2156115, 3593525, 4312230, 7187050, 10780575, 21561150]

約数ペア:

[(1, 21561150), (2, 10780575), (3, 7187050), (5, 4312230), (6, 3593525), (10, 2156115), (13, 1658550), (15, 1437410), (25, 862446), (26, 829275), (30, 718705), (39, 552850), (50, 431223), (65, 331710), (75, 287482), (78, 276425), (130, 165855), (150, 143741), (195, 110570), (325, 66342), (390, 55285), (650, 33171), (975, 22114), (1950, 11057)]