19807398

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1801}}^1$

素因数の和:1869

約数の個数: 48

約数和(自身を含む): 47226816

約数和(自身を除く): 27419418

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 47, 78, 94, 117, 141, 234, 282, 423, 611, 846, 1222, 1801, 1833, 3602, 3666, 5403, 5499, 10806, 10998, 16209, 23413, 32418, 46826, 70239, 84647, 140478, 169294, 210717, 253941, 421434, 507882, 761823, 1100411, 1523646, 2200822, 3301233, 6602466, 9903699, 19807398]

約数ペア:

[(1, 19807398), (2, 9903699), (3, 6602466), (6, 3301233), (9, 2200822), (13, 1523646), (18, 1100411), (26, 761823), (39, 507882), (47, 421434), (78, 253941), (94, 210717), (117, 169294), (141, 140478), (234, 84647), (282, 70239), (423, 46826), (611, 32418), (846, 23413), (1222, 16209), (1801, 10998), (1833, 10806), (3602, 5499), (3666, 5403)]