21553372

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{6917}}^1$

素因数の和:6981

約数の個数: 24

約数和(自身を含む): 40677840

約数和(自身を除く): 19124468

約数列:

[1, 2, 4, 19, 38, 41, 76, 82, 164, 779, 1558, 3116, 6917, 13834, 27668, 131423, 262846, 283597, 525692, 567194, 1134388, 5388343, 10776686, 21553372]

約数ペア:

[(1, 21553372), (2, 10776686), (4, 5388343), (19, 1134388), (38, 567194), (41, 525692), (76, 283597), (82, 262846), (164, 131423), (779, 27668), (1558, 13834), (3116, 6917)]