21465660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2731}}^1$

素因数の和:2874

約数の個数: 48

約数和(自身を含む): 60584832

約数和(自身を除く): 39119172

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 262, 393, 524, 655, 786, 1310, 1572, 1965, 2620, 2731, 3930, 5462, 7860, 8193, 10924, 13655, 16386, 27310, 32772, 40965, 54620, 81930, 163860, 357761, 715522, 1073283, 1431044, 1788805, 2146566, 3577610, 4293132, 5366415, 7155220, 10732830, 21465660]

約数ペア:

[(1, 21465660), (2, 10732830), (3, 7155220), (4, 5366415), (5, 4293132), (6, 3577610), (10, 2146566), (12, 1788805), (15, 1431044), (20, 1073283), (30, 715522), (60, 357761), (131, 163860), (262, 81930), (393, 54620), (524, 40965), (655, 32772), (786, 27310), (1310, 16386), (1572, 13655), (1965, 10924), (2620, 8193), (2731, 7860), (3930, 5462)]