18957224

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{227}}^1$

素因数の和:330

約数の個数: 64

約数和(自身を含む): 42517440

約数和(自身を除く): 23560216

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 73, 88, 104, 143, 146, 227, 286, 292, 454, 572, 584, 803, 908, 949, 1144, 1606, 1816, 1898, 2497, 2951, 3212, 3796, 4994, 5902, 6424, 7592, 9988, 10439, 11804, 16571, 19976, 20878, 23608, 32461, 33142, 41756, 64922, 66284, 83512, 129844, 132568, 182281, 215423, 259688, 364562, 430846, 729124, 861692, 1458248, 1723384, 2369653, 4739306, 9478612, 18957224]

約数ペア:

[(1, 18957224), (2, 9478612), (4, 4739306), (8, 2369653), (11, 1723384), (13, 1458248), (22, 861692), (26, 729124), (44, 430846), (52, 364562), (73, 259688), (88, 215423), (104, 182281), (143, 132568), (146, 129844), (227, 83512), (286, 66284), (292, 64922), (454, 41756), (572, 33142), (584, 32461), (803, 23608), (908, 20878), (949, 19976), (1144, 16571), (1606, 11804), (1816, 10439), (1898, 9988), (2497, 7592), (2951, 6424), (3212, 5902), (3796, 4994)]