20639676

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{491}}^1$

素因数の和:642

約数の個数: 48

約数和(自身を含む): 50254848

約数和(自身を除く): 29615172

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 93, 113, 124, 186, 226, 339, 372, 452, 491, 678, 982, 1356, 1473, 1964, 2946, 3503, 5892, 7006, 10509, 14012, 15221, 21018, 30442, 42036, 45663, 55483, 60884, 91326, 110966, 166449, 182652, 221932, 332898, 665796, 1719973, 3439946, 5159919, 6879892, 10319838, 20639676]

約数ペア:

[(1, 20639676), (2, 10319838), (3, 6879892), (4, 5159919), (6, 3439946), (12, 1719973), (31, 665796), (62, 332898), (93, 221932), (113, 182652), (124, 166449), (186, 110966), (226, 91326), (339, 60884), (372, 55483), (452, 45663), (491, 42036), (678, 30442), (982, 21018), (1356, 15221), (1473, 14012), (1964, 10509), (2946, 7006), (3503, 5892)]