18973968

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^2\times {\mathrm{2339}}^1$

素因数の和:2376

約数の個数: 60

約数和(自身を含む): 53099280

約数和(自身を除く): 34125312

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 169, 208, 312, 338, 507, 624, 676, 1014, 1352, 2028, 2339, 2704, 4056, 4678, 7017, 8112, 9356, 14034, 18712, 28068, 30407, 37424, 56136, 60814, 91221, 112272, 121628, 182442, 243256, 364884, 395291, 486512, 729768, 790582, 1185873, 1459536, 1581164, 2371746, 3162328, 4743492, 6324656, 9486984, 18973968]

約数ペア:

[(1, 18973968), (2, 9486984), (3, 6324656), (4, 4743492), (6, 3162328), (8, 2371746), (12, 1581164), (13, 1459536), (16, 1185873), (24, 790582), (26, 729768), (39, 486512), (48, 395291), (52, 364884), (78, 243256), (104, 182442), (156, 121628), (169, 112272), (208, 91221), (312, 60814), (338, 56136), (507, 37424), (624, 30407), (676, 28068), (1014, 18712), (1352, 14034), (2028, 9356), (2339, 8112), (2704, 7017), (4056, 4678)]