21714625

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:298

約数の個数: 32

約数和(自身を含む): 29352960

約数和(自身を除く): 7638335

約数列:

[1, 5, 19, 25, 41, 95, 125, 205, 223, 475, 779, 1025, 1115, 2375, 3895, 4237, 5125, 5575, 9143, 19475, 21185, 27875, 45715, 97375, 105925, 173717, 228575, 529625, 868585, 1142875, 4342925, 21714625]

約数ペア:

[(1, 21714625), (5, 4342925), (19, 1142875), (25, 868585), (41, 529625), (95, 228575), (125, 173717), (205, 105925), (223, 97375), (475, 45715), (779, 27875), (1025, 21185), (1115, 19475), (2375, 9143), (3895, 5575), (4237, 5125)]