19992

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{17}}^1$

素因数の和:40

約数の個数: 48

約数和(自身を含む): 61560

約数和(自身を除く): 41568

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 49, 51, 56, 68, 84, 98, 102, 119, 136, 147, 168, 196, 204, 238, 294, 357, 392, 408, 476, 588, 714, 833, 952, 1176, 1428, 1666, 2499, 2856, 3332, 4998, 6664, 9996, 19992]

約数ペア:

[(1, 19992), (2, 9996), (3, 6664), (4, 4998), (6, 3332), (7, 2856), (8, 2499), (12, 1666), (14, 1428), (17, 1176), (21, 952), (24, 833), (28, 714), (34, 588), (42, 476), (49, 408), (51, 392), (56, 357), (68, 294), (84, 238), (98, 204), (102, 196), (119, 168), (136, 147)]