21723130

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1381}}^1$

素因数の和:1423

約数の個数: 48

約数和(自身を含む): 46319112

約数和(自身を除く): 24595982

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 121, 130, 143, 242, 286, 605, 715, 1210, 1381, 1430, 1573, 2762, 3146, 6905, 7865, 13810, 15191, 15730, 17953, 30382, 35906, 75955, 89765, 151910, 167101, 179530, 197483, 334202, 394966, 835505, 987415, 1671010, 1974830, 2172313, 4344626, 10861565, 21723130]

約数ペア:

[(1, 21723130), (2, 10861565), (5, 4344626), (10, 2172313), (11, 1974830), (13, 1671010), (22, 987415), (26, 835505), (55, 394966), (65, 334202), (110, 197483), (121, 179530), (130, 167101), (143, 151910), (242, 89765), (286, 75955), (605, 35906), (715, 30382), (1210, 17953), (1381, 15730), (1430, 15191), (1573, 13810), (2762, 7865), (3146, 6905)]