15218847

素因数分解:

$3^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 27256320

約数和(自身を除く): 12037473

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 189, 207, 243, 389, 483, 567, 621, 1167, 1449, 1701, 1863, 2723, 3501, 4347, 5589, 8169, 8947, 10503, 13041, 24507, 26841, 31509, 39123, 62629, 73521, 80523, 94527, 187887, 220563, 241569, 563661, 661689, 724707, 1690983, 2174121, 5072949, 15218847]

約数ペア:

[(1, 15218847), (3, 5072949), (7, 2174121), (9, 1690983), (21, 724707), (23, 661689), (27, 563661), (63, 241569), (69, 220563), (81, 187887), (161, 94527), (189, 80523), (207, 73521), (243, 62629), (389, 39123), (483, 31509), (567, 26841), (621, 24507), (1167, 13041), (1449, 10503), (1701, 8947), (1863, 8169), (2723, 5589), (3501, 4347)]