21177960025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{755681}}^1$

素因数の和:755769

約数の個数: 24

約数和(自身を含む): 28111370400

約数和(自身を除く): 6933410375

約数列:

[1, 5, 19, 25, 59, 95, 295, 475, 1121, 1475, 5605, 28025, 755681, 3778405, 14357939, 18892025, 44585179, 71789695, 222925895, 358948475, 847118401, 1114629475, 4235592005, 21177960025]

約数ペア:

[(1, 21177960025), (5, 4235592005), (19, 1114629475), (25, 847118401), (59, 358948475), (95, 222925895), (295, 71789695), (475, 44585179), (1121, 18892025), (1475, 14357939), (5605, 3778405), (28025, 755681)]