19880796

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4111}}^1$

素因数の和:4162

約数の個数: 48

約数和(自身を含む): 51580928

約数和(自身を除く): 31700132

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 62, 78, 93, 124, 156, 186, 372, 403, 806, 1209, 1612, 2418, 4111, 4836, 8222, 12333, 16444, 24666, 49332, 53443, 106886, 127441, 160329, 213772, 254882, 320658, 382323, 509764, 641316, 764646, 1529292, 1656733, 3313466, 4970199, 6626932, 9940398, 19880796]

約数ペア:

[(1, 19880796), (2, 9940398), (3, 6626932), (4, 4970199), (6, 3313466), (12, 1656733), (13, 1529292), (26, 764646), (31, 641316), (39, 509764), (52, 382323), (62, 320658), (78, 254882), (93, 213772), (124, 160329), (156, 127441), (186, 106886), (372, 53443), (403, 49332), (806, 24666), (1209, 16444), (1612, 12333), (2418, 8222), (4111, 4836)]