18662868

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2389}}^1$

素因数の和:2437

約数の個数: 72

約数和(自身を含む): 55677440

約数和(自身を除く): 37014572

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 31, 36, 42, 62, 63, 84, 93, 124, 126, 186, 217, 252, 279, 372, 434, 558, 651, 868, 1116, 1302, 1953, 2389, 2604, 3906, 4778, 7167, 7812, 9556, 14334, 16723, 21501, 28668, 33446, 43002, 50169, 66892, 74059, 86004, 100338, 148118, 150507, 200676, 222177, 296236, 301014, 444354, 518413, 602028, 666531, 888708, 1036826, 1333062, 1555239, 2073652, 2666124, 3110478, 4665717, 6220956, 9331434, 18662868]

約数ペア:

[(1, 18662868), (2, 9331434), (3, 6220956), (4, 4665717), (6, 3110478), (7, 2666124), (9, 2073652), (12, 1555239), (14, 1333062), (18, 1036826), (21, 888708), (28, 666531), (31, 602028), (36, 518413), (42, 444354), (62, 301014), (63, 296236), (84, 222177), (93, 200676), (124, 150507), (126, 148118), (186, 100338), (217, 86004), (252, 74059), (279, 66892), (372, 50169), (434, 43002), (558, 33446), (651, 28668), (868, 21501), (1116, 16723), (1302, 14334), (1953, 9556), (2389, 7812), (2604, 7167), (3906, 4778)]