19983654

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{607}}^1$

素因数の和:705

約数の個数: 48

約数和(自身を含む): 45527040

約数和(自身を除く): 25543386

約数列:

[1, 2, 3, 6, 9, 18, 31, 59, 62, 93, 118, 177, 186, 279, 354, 531, 558, 607, 1062, 1214, 1821, 1829, 3642, 3658, 5463, 5487, 10926, 10974, 16461, 18817, 32922, 35813, 37634, 56451, 71626, 107439, 112902, 169353, 214878, 322317, 338706, 644634, 1110203, 2220406, 3330609, 6661218, 9991827, 19983654]

約数ペア:

[(1, 19983654), (2, 9991827), (3, 6661218), (6, 3330609), (9, 2220406), (18, 1110203), (31, 644634), (59, 338706), (62, 322317), (93, 214878), (118, 169353), (177, 112902), (186, 107439), (279, 71626), (354, 56451), (531, 37634), (558, 35813), (607, 32922), (1062, 18817), (1214, 16461), (1821, 10974), (1829, 10926), (3642, 5487), (3658, 5463)]