21967964

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 20368036

約数列:

[1, 2, 4, 29, 31, 41, 58, 62, 82, 116, 124, 149, 164, 298, 596, 899, 1189, 1271, 1798, 2378, 2542, 3596, 4321, 4619, 4756, 5084, 6109, 8642, 9238, 12218, 17284, 18476, 24436, 36859, 73718, 133951, 147436, 177161, 189379, 267902, 354322, 378758, 535804, 708644, 757516, 5491991, 10983982, 21967964]

約数ペア:

[(1, 21967964), (2, 10983982), (4, 5491991), (29, 757516), (31, 708644), (41, 535804), (58, 378758), (62, 354322), (82, 267902), (116, 189379), (124, 177161), (149, 147436), (164, 133951), (298, 73718), (596, 36859), (899, 24436), (1189, 18476), (1271, 17284), (1798, 12218), (2378, 9238), (2542, 8642), (3596, 6109), (4321, 5084), (4619, 4756)]