20892165

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 41029632

約数和(自身を除く): 20137467

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 41, 69, 105, 115, 123, 161, 205, 211, 287, 345, 483, 615, 633, 805, 861, 943, 1055, 1435, 1477, 2415, 2829, 3165, 4305, 4431, 4715, 4853, 6601, 7385, 8651, 14145, 14559, 19803, 22155, 24265, 25953, 33005, 33971, 43255, 60557, 72795, 99015, 101913, 129765, 169855, 181671, 198973, 302785, 509565, 596919, 908355, 994865, 1392811, 2984595, 4178433, 6964055, 20892165]

約数ペア:

[(1, 20892165), (3, 6964055), (5, 4178433), (7, 2984595), (15, 1392811), (21, 994865), (23, 908355), (35, 596919), (41, 509565), (69, 302785), (105, 198973), (115, 181671), (123, 169855), (161, 129765), (205, 101913), (211, 99015), (287, 72795), (345, 60557), (483, 43255), (615, 33971), (633, 33005), (805, 25953), (861, 24265), (943, 22155), (1055, 19803), (1435, 14559), (1477, 14145), (2415, 8651), (2829, 7385), (3165, 6601), (4305, 4853), (4431, 4715)]