21427835

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1303}}^1$

素因数の和:1355

約数の個数: 32

約数和(自身を含む): 31546368

約数和(自身を除く): 10118533

約数列:

[1, 5, 11, 13, 23, 55, 65, 115, 143, 253, 299, 715, 1265, 1303, 1495, 3289, 6515, 14333, 16445, 16939, 29969, 71665, 84695, 149845, 186329, 329659, 389597, 931645, 1648295, 1947985, 4285567, 21427835]

約数ペア:

[(1, 21427835), (5, 4285567), (11, 1947985), (13, 1648295), (23, 931645), (55, 389597), (65, 329659), (115, 186329), (143, 149845), (253, 84695), (299, 71665), (715, 29969), (1265, 16939), (1303, 16445), (1495, 14333), (3289, 6515)]