18933728

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{149}}^1$

素因数の和:208

約数の個数: 72

約数和(自身を含む): 43205400

約数和(自身を除く): 24271672

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 76, 88, 149, 152, 176, 209, 298, 304, 352, 361, 418, 596, 608, 722, 836, 1192, 1444, 1639, 1672, 2384, 2831, 2888, 3278, 3344, 3971, 4768, 5662, 5776, 6556, 6688, 7942, 11324, 11552, 13112, 15884, 22648, 26224, 31141, 31768, 45296, 52448, 53789, 62282, 63536, 90592, 107578, 124564, 127072, 215156, 249128, 430312, 498256, 591679, 860624, 996512, 1183358, 1721248, 2366716, 4733432, 9466864, 18933728]

約数ペア:

[(1, 18933728), (2, 9466864), (4, 4733432), (8, 2366716), (11, 1721248), (16, 1183358), (19, 996512), (22, 860624), (32, 591679), (38, 498256), (44, 430312), (76, 249128), (88, 215156), (149, 127072), (152, 124564), (176, 107578), (209, 90592), (298, 63536), (304, 62282), (352, 53789), (361, 52448), (418, 45296), (596, 31768), (608, 31141), (722, 26224), (836, 22648), (1192, 15884), (1444, 13112), (1639, 11552), (1672, 11324), (2384, 7942), (2831, 6688), (2888, 6556), (3278, 5776), (3344, 5662), (3971, 4768)]