20311758

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{409}}^1$

素因数の和:537

約数の個数: 48

約数和(自身を含む): 46051200

約数和(自身を除く): 25739442

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 89, 93, 178, 186, 267, 279, 409, 534, 558, 801, 818, 1227, 1602, 2454, 2759, 3681, 5518, 7362, 8277, 12679, 16554, 24831, 25358, 36401, 38037, 49662, 72802, 76074, 109203, 114111, 218406, 228222, 327609, 655218, 1128431, 2256862, 3385293, 6770586, 10155879, 20311758]

約数ペア:

[(1, 20311758), (2, 10155879), (3, 6770586), (6, 3385293), (9, 2256862), (18, 1128431), (31, 655218), (62, 327609), (89, 228222), (93, 218406), (178, 114111), (186, 109203), (267, 76074), (279, 72802), (409, 49662), (534, 38037), (558, 36401), (801, 25358), (818, 24831), (1227, 16554), (1602, 12679), (2454, 8277), (2759, 7362), (3681, 5518)]