21497898235

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{541}}^1\times {\mathrm{3023}}^1$

素因数の和:3819

約数の個数: 32

約数和(自身を含む): 28322058240

約数和(自身を除く): 6824160005

約数列:

[1, 5, 11, 55, 239, 541, 1195, 2629, 2705, 3023, 5951, 13145, 15115, 29755, 33253, 129299, 166265, 646495, 722497, 1422289, 1635443, 3612485, 7111445, 7947467, 8177215, 17989873, 39737335, 89949365, 390870877, 1954354385, 4299579647, 21497898235]

約数ペア:

[(1, 21497898235), (5, 4299579647), (11, 1954354385), (55, 390870877), (239, 89949365), (541, 39737335), (1195, 17989873), (2629, 8177215), (2705, 7947467), (3023, 7111445), (5951, 3612485), (13145, 1635443), (15115, 1422289), (29755, 722497), (33253, 646495), (129299, 166265)]