21137610

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{653}}^1$

素因数の和:759

約数の個数: 64

約数和(自身を含む): 55375488

約数和(自身を除く): 34237878

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 83, 130, 166, 195, 249, 390, 415, 498, 653, 830, 1079, 1245, 1306, 1959, 2158, 2490, 3237, 3265, 3918, 5395, 6474, 6530, 8489, 9795, 10790, 16185, 16978, 19590, 25467, 32370, 42445, 50934, 54199, 84890, 108398, 127335, 162597, 254670, 270995, 325194, 541990, 704587, 812985, 1409174, 1625970, 2113761, 3522935, 4227522, 7045870, 10568805, 21137610]

約数ペア:

[(1, 21137610), (2, 10568805), (3, 7045870), (5, 4227522), (6, 3522935), (10, 2113761), (13, 1625970), (15, 1409174), (26, 812985), (30, 704587), (39, 541990), (65, 325194), (78, 270995), (83, 254670), (130, 162597), (166, 127335), (195, 108398), (249, 84890), (390, 54199), (415, 50934), (498, 42445), (653, 32370), (830, 25467), (1079, 19590), (1245, 16978), (1306, 16185), (1959, 10790), (2158, 9795), (2490, 8489), (3237, 6530), (3265, 6474), (3918, 5395)]