19748178

素因数分解:

$2^1\times 3^3\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{251}}^1$

素因数の和:340

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 26700462

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 47, 54, 62, 93, 94, 141, 186, 251, 279, 282, 423, 502, 558, 753, 837, 846, 1269, 1457, 1506, 1674, 2259, 2538, 2914, 4371, 4518, 6777, 7781, 8742, 11797, 13113, 13554, 15562, 23343, 23594, 26226, 35391, 39339, 46686, 70029, 70782, 78678, 106173, 140058, 210087, 212346, 318519, 365707, 420174, 637038, 731414, 1097121, 2194242, 3291363, 6582726, 9874089, 19748178]

約数ペア:

[(1, 19748178), (2, 9874089), (3, 6582726), (6, 3291363), (9, 2194242), (18, 1097121), (27, 731414), (31, 637038), (47, 420174), (54, 365707), (62, 318519), (93, 212346), (94, 210087), (141, 140058), (186, 106173), (251, 78678), (279, 70782), (282, 70029), (423, 46686), (502, 39339), (558, 35391), (753, 26226), (837, 23594), (846, 23343), (1269, 15562), (1457, 13554), (1506, 13113), (1674, 11797), (2259, 8742), (2538, 7781), (2914, 6777), (4371, 4518)]