19187946

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{251}}^1$

素因数の和:427

約数の個数: 48

約数和(自身を含む): 43400448

約数和(自身を除く): 24212502

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 137, 186, 251, 274, 279, 411, 502, 558, 753, 822, 1233, 1506, 2259, 2466, 4247, 4518, 7781, 8494, 12741, 15562, 23343, 25482, 34387, 38223, 46686, 68774, 70029, 76446, 103161, 140058, 206322, 309483, 618966, 1065997, 2131994, 3197991, 6395982, 9593973, 19187946]

約数ペア:

[(1, 19187946), (2, 9593973), (3, 6395982), (6, 3197991), (9, 2131994), (18, 1065997), (31, 618966), (62, 309483), (93, 206322), (137, 140058), (186, 103161), (251, 76446), (274, 70029), (279, 68774), (411, 46686), (502, 38223), (558, 34387), (753, 25482), (822, 23343), (1233, 15562), (1506, 12741), (2259, 8494), (2466, 7781), (4247, 4518)]