21706980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1093}}^1$

素因数の和:1436

約数の個数: 48

約数和(自身を含む): 61018944

約数和(自身を除く): 39311964

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 331, 662, 993, 1093, 1324, 1655, 1986, 2186, 3279, 3310, 3972, 4372, 4965, 5465, 6558, 6620, 9930, 10930, 13116, 16395, 19860, 21860, 32790, 65580, 361783, 723566, 1085349, 1447132, 1808915, 2170698, 3617830, 4341396, 5426745, 7235660, 10853490, 21706980]

約数ペア:

[(1, 21706980), (2, 10853490), (3, 7235660), (4, 5426745), (5, 4341396), (6, 3617830), (10, 2170698), (12, 1808915), (15, 1447132), (20, 1085349), (30, 723566), (60, 361783), (331, 65580), (662, 32790), (993, 21860), (1093, 19860), (1324, 16395), (1655, 13116), (1986, 10930), (2186, 9930), (3279, 6620), (3310, 6558), (3972, 5465), (4372, 4965)]