21861060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{28027}}^1$

素因数の和:28052

約数の個数: 48

約数和(自身を含む): 65921856

約数和(自身を除く): 44060796

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 28027, 56054, 84081, 112108, 140135, 168162, 280270, 336324, 364351, 420405, 560540, 728702, 840810, 1093053, 1457404, 1681620, 1821755, 2186106, 3643510, 4372212, 5465265, 7287020, 10930530, 21861060]

約数ペア:

[(1, 21861060), (2, 10930530), (3, 7287020), (4, 5465265), (5, 4372212), (6, 3643510), (10, 2186106), (12, 1821755), (13, 1681620), (15, 1457404), (20, 1093053), (26, 840810), (30, 728702), (39, 560540), (52, 420405), (60, 364351), (65, 336324), (78, 280270), (130, 168162), (156, 140135), (195, 112108), (260, 84081), (390, 56054), (780, 28027)]