18856612016

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{5638939}}^1$

素因数の和:5638977

約数の個数: 40

約数和(自身を含む): 41953713600

約数和(自身を除く): 23097101584

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 836, 1672, 3344, 5638939, 11277878, 22555756, 45111512, 62028329, 90223024, 107139841, 124056658, 214279682, 248113316, 428559364, 496226632, 857118728, 992453264, 1178538251, 1714237456, 2357076502, 4714153004, 9428306008, 18856612016]

約数ペア:

[(1, 18856612016), (2, 9428306008), (4, 4714153004), (8, 2357076502), (11, 1714237456), (16, 1178538251), (19, 992453264), (22, 857118728), (38, 496226632), (44, 428559364), (76, 248113316), (88, 214279682), (152, 124056658), (176, 107139841), (209, 90223024), (304, 62028329), (418, 45111512), (836, 22555756), (1672, 11277878), (3344, 5638939)]