28839993

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{709}}^1$

素因数の和:881

約数の個数: 32

約数和(自身を含む): 47712000

約数和(自身を除く): 18872007

約数列:

[1, 3, 7, 13, 21, 39, 91, 149, 273, 447, 709, 1043, 1937, 2127, 3129, 4963, 5811, 9217, 13559, 14889, 27651, 40677, 64519, 105641, 193557, 316923, 739487, 1373333, 2218461, 4119999, 9613331, 28839993]

約数ペア:

[(1, 28839993), (3, 9613331), (7, 4119999), (13, 2218461), (21, 1373333), (39, 739487), (91, 316923), (149, 193557), (273, 105641), (447, 64519), (709, 40677), (1043, 27651), (1937, 14889), (2127, 13559), (3129, 9217), (4963, 5811)]