21193770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1753}}^1$

素因数の和:1807

約数の個数: 64

約数和(自身を含む): 56577024

約数和(自身を除く): 35383254

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 31, 39, 62, 65, 78, 93, 130, 155, 186, 195, 310, 390, 403, 465, 806, 930, 1209, 1753, 2015, 2418, 3506, 4030, 5259, 6045, 8765, 10518, 12090, 17530, 22789, 26295, 45578, 52590, 54343, 68367, 108686, 113945, 136734, 163029, 227890, 271715, 326058, 341835, 543430, 683670, 706459, 815145, 1412918, 1630290, 2119377, 3532295, 4238754, 7064590, 10596885, 21193770]

約数ペア:

[(1, 21193770), (2, 10596885), (3, 7064590), (5, 4238754), (6, 3532295), (10, 2119377), (13, 1630290), (15, 1412918), (26, 815145), (30, 706459), (31, 683670), (39, 543430), (62, 341835), (65, 326058), (78, 271715), (93, 227890), (130, 163029), (155, 136734), (186, 113945), (195, 108686), (310, 68367), (390, 54343), (403, 52590), (465, 45578), (806, 26295), (930, 22789), (1209, 17530), (1753, 12090), (2015, 10518), (2418, 8765), (3506, 6045), (4030, 5259)]