21384918

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^2\times {\mathrm{1097}}^1$

素因数の和:1146

約数の個数: 48

約数和(自身を含む): 50200560

約数和(自身を除く): 28815642

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 114, 171, 342, 361, 513, 722, 1026, 1083, 1097, 2166, 2194, 3249, 3291, 6498, 6582, 9747, 9873, 19494, 19746, 20843, 29619, 41686, 59238, 62529, 125058, 187587, 375174, 396017, 562761, 792034, 1125522, 1188051, 2376102, 3564153, 7128306, 10692459, 21384918]

約数ペア:

[(1, 21384918), (2, 10692459), (3, 7128306), (6, 3564153), (9, 2376102), (18, 1188051), (19, 1125522), (27, 792034), (38, 562761), (54, 396017), (57, 375174), (114, 187587), (171, 125058), (342, 62529), (361, 59238), (513, 41686), (722, 29619), (1026, 20843), (1083, 19746), (1097, 19494), (2166, 9873), (2194, 9747), (3249, 6582), (3291, 6498)]