21259608

素因数分解:

$2^3\times 3^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{269}}^1$

素因数の和:404

約数の個数: 64

約数和(自身を含む): 55404000

約数和(自身を除く): 34144392

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 37, 74, 89, 111, 148, 178, 222, 267, 269, 296, 356, 444, 534, 538, 712, 807, 888, 1068, 1076, 1614, 2136, 2152, 3228, 3293, 6456, 6586, 9879, 9953, 13172, 19758, 19906, 23941, 26344, 29859, 39516, 39812, 47882, 59718, 71823, 79032, 79624, 95764, 119436, 143646, 191528, 238872, 287292, 574584, 885817, 1771634, 2657451, 3543268, 5314902, 7086536, 10629804, 21259608]

約数ペア:

[(1, 21259608), (2, 10629804), (3, 7086536), (4, 5314902), (6, 3543268), (8, 2657451), (12, 1771634), (24, 885817), (37, 574584), (74, 287292), (89, 238872), (111, 191528), (148, 143646), (178, 119436), (222, 95764), (267, 79624), (269, 79032), (296, 71823), (356, 59718), (444, 47882), (534, 39812), (538, 39516), (712, 29859), (807, 26344), (888, 23941), (1068, 19906), (1076, 19758), (1614, 13172), (2136, 9953), (2152, 9879), (3228, 6586), (3293, 6456)]