20865075

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3613}}^1$

素因数の和:3644

約数の個数: 48

約数和(自身を含む): 43021056

約数和(自身を除く): 22155981

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 33, 35, 55, 75, 77, 105, 165, 175, 231, 275, 385, 525, 825, 1155, 1925, 3613, 5775, 10839, 18065, 25291, 39743, 54195, 75873, 90325, 119229, 126455, 198715, 270975, 278201, 379365, 596145, 632275, 834603, 993575, 1391005, 1896825, 2980725, 4173015, 6955025, 20865075]

約数ペア:

[(1, 20865075), (3, 6955025), (5, 4173015), (7, 2980725), (11, 1896825), (15, 1391005), (21, 993575), (25, 834603), (33, 632275), (35, 596145), (55, 379365), (75, 278201), (77, 270975), (105, 198715), (165, 126455), (175, 119229), (231, 90325), (275, 75873), (385, 54195), (525, 39743), (825, 25291), (1155, 18065), (1925, 10839), (3613, 5775)]