19947366

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{491}}^1$

素因数の和:597

約数の個数: 48

約数和(自身を含む): 45206928

約数和(自身を除く): 25259562

約数列:

[1, 2, 3, 6, 9, 18, 37, 61, 74, 111, 122, 183, 222, 333, 366, 491, 549, 666, 982, 1098, 1473, 2257, 2946, 4419, 4514, 6771, 8838, 13542, 18167, 20313, 29951, 36334, 40626, 54501, 59902, 89853, 109002, 163503, 179706, 269559, 327006, 539118, 1108187, 2216374, 3324561, 6649122, 9973683, 19947366]

約数ペア:

[(1, 19947366), (2, 9973683), (3, 6649122), (6, 3324561), (9, 2216374), (18, 1108187), (37, 539118), (61, 327006), (74, 269559), (111, 179706), (122, 163503), (183, 109002), (222, 89853), (333, 59902), (366, 54501), (491, 40626), (549, 36334), (666, 29951), (982, 20313), (1098, 18167), (1473, 13542), (2257, 8838), (2946, 6771), (4419, 4514)]