20931246

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{283}}^1\times {\mathrm{587}}^1$

素因数の和:885

約数の個数: 48

約数和(自身を含む): 52101504

約数和(自身を除く): 31170258

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 283, 566, 587, 849, 1174, 1698, 1761, 1981, 2547, 3522, 3962, 4109, 5094, 5283, 5943, 8218, 10566, 11886, 12327, 17829, 24654, 35658, 36981, 73962, 166121, 332242, 498363, 996726, 1162847, 1495089, 2325694, 2990178, 3488541, 6977082, 10465623, 20931246]

約数ペア:

[(1, 20931246), (2, 10465623), (3, 6977082), (6, 3488541), (7, 2990178), (9, 2325694), (14, 1495089), (18, 1162847), (21, 996726), (42, 498363), (63, 332242), (126, 166121), (283, 73962), (566, 36981), (587, 35658), (849, 24654), (1174, 17829), (1698, 12327), (1761, 11886), (1981, 10566), (2547, 8218), (3522, 5943), (3962, 5283), (4109, 5094)]