21893911

素因数分解:

${\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:378

約数の個数: 16

約数和(自身を含む): 24192000

約数和(自身を除く): 2298089

約数列:

[1, 13, 89, 127, 149, 1157, 1651, 1937, 11303, 13261, 18923, 146939, 172393, 245999, 1684147, 21893911]

約数ペア:

[(1, 21893911), (13, 1684147), (89, 245999), (127, 172393), (149, 146939), (1157, 18923), (1651, 13261), (1937, 11303)]