19950975

素因数分解:

$3^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{2687}}^1$

素因数の和:2717

約数の個数: 48

約数和(自身を含む): 39997440

約数和(自身を除く): 20046465

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 99, 135, 165, 225, 275, 297, 495, 675, 825, 1485, 2475, 2687, 7425, 8061, 13435, 24183, 29557, 40305, 67175, 72549, 88671, 120915, 147785, 201525, 266013, 362745, 443355, 604575, 738925, 798039, 1330065, 1813725, 2216775, 3990195, 6650325, 19950975]

約数ペア:

[(1, 19950975), (3, 6650325), (5, 3990195), (9, 2216775), (11, 1813725), (15, 1330065), (25, 798039), (27, 738925), (33, 604575), (45, 443355), (55, 362745), (75, 266013), (99, 201525), (135, 147785), (165, 120915), (225, 88671), (275, 72549), (297, 67175), (495, 40305), (675, 29557), (825, 24183), (1485, 13435), (2475, 8061), (2687, 7425)]