28822521

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1487}}^1$

素因数の和:1581

約数の個数: 32

約数和(自身を含む): 47996928

約数和(自身を除く): 19174407

約数列:

[1, 3, 7, 13, 21, 39, 71, 91, 213, 273, 497, 923, 1487, 1491, 2769, 4461, 6461, 10409, 19331, 19383, 31227, 57993, 105577, 135317, 316731, 405951, 739039, 1372501, 2217117, 4117503, 9607507, 28822521]

約数ペア:

[(1, 28822521), (3, 9607507), (7, 4117503), (13, 2217117), (21, 1372501), (39, 739039), (71, 405951), (91, 316731), (213, 135317), (273, 105577), (497, 57993), (923, 31227), (1487, 19383), (1491, 19331), (2769, 10409), (4461, 6461)]