21876297

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 32431104

約数和(自身を除く): 10554807

約数列:

[1, 3, 17, 31, 51, 93, 101, 137, 303, 411, 527, 1581, 1717, 2329, 3131, 4247, 5151, 6987, 9393, 12741, 13837, 41511, 53227, 72199, 159681, 216597, 235229, 428947, 705687, 1286841, 7292099, 21876297]

約数ペア:

[(1, 21876297), (3, 7292099), (17, 1286841), (31, 705687), (51, 428947), (93, 235229), (101, 216597), (137, 159681), (303, 72199), (411, 53227), (527, 41511), (1581, 13837), (1717, 12741), (2329, 9393), (3131, 6987), (4247, 5151)]