18943938

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1109}}^1$

素因数の和:1203

約数の個数: 48

約数和(自身を含む): 44848440

約数和(自身を除く): 25904502

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 73, 78, 117, 146, 219, 234, 438, 657, 949, 1109, 1314, 1898, 2218, 2847, 3327, 5694, 6654, 8541, 9981, 14417, 17082, 19962, 28834, 43251, 80957, 86502, 129753, 161914, 242871, 259506, 485742, 728613, 1052441, 1457226, 2104882, 3157323, 6314646, 9471969, 18943938]

約数ペア:

[(1, 18943938), (2, 9471969), (3, 6314646), (6, 3157323), (9, 2104882), (13, 1457226), (18, 1052441), (26, 728613), (39, 485742), (73, 259506), (78, 242871), (117, 161914), (146, 129753), (219, 86502), (234, 80957), (438, 43251), (657, 28834), (949, 19962), (1109, 17082), (1314, 14417), (1898, 9981), (2218, 8541), (2847, 6654), (3327, 5694)]