16820856

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17971}}^1$

素因数の和:17996

約数の個数: 48

約数和(自身を含む): 49063560

約数和(自身を除く): 32242704

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 17971, 35942, 53913, 71884, 107826, 143768, 161739, 215652, 233623, 323478, 431304, 467246, 646956, 700869, 934492, 1293912, 1401738, 1868984, 2102607, 2803476, 4205214, 5606952, 8410428, 16820856]

約数ペア:

[(1, 16820856), (2, 8410428), (3, 5606952), (4, 4205214), (6, 2803476), (8, 2102607), (9, 1868984), (12, 1401738), (13, 1293912), (18, 934492), (24, 700869), (26, 646956), (36, 467246), (39, 431304), (52, 323478), (72, 233623), (78, 215652), (104, 161739), (117, 143768), (156, 107826), (234, 71884), (312, 53913), (468, 35942), (936, 17971)]