19971056

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^2\times {\mathrm{617}}^1$

素因数の和:666

約数の個数: 60

約数和(自身を含む): 47052048

約数和(自身を除く): 27080992

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 289, 476, 578, 617, 952, 1156, 1234, 1904, 2023, 2312, 2468, 4046, 4319, 4624, 4936, 8092, 8638, 9872, 10489, 16184, 17276, 20978, 32368, 34552, 41956, 69104, 73423, 83912, 146846, 167824, 178313, 293692, 356626, 587384, 713252, 1174768, 1248191, 1426504, 2496382, 2853008, 4992764, 9985528, 19971056]

約数ペア:

[(1, 19971056), (2, 9985528), (4, 4992764), (7, 2853008), (8, 2496382), (14, 1426504), (16, 1248191), (17, 1174768), (28, 713252), (34, 587384), (56, 356626), (68, 293692), (112, 178313), (119, 167824), (136, 146846), (238, 83912), (272, 73423), (289, 69104), (476, 41956), (578, 34552), (617, 32368), (952, 20978), (1156, 17276), (1234, 16184), (1904, 10489), (2023, 9872), (2312, 8638), (2468, 8092), (4046, 4936), (4319, 4624)]