21193925

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:134

約数の個数: 48

約数和(自身を含む): 29998080

約数和(自身を除く): 8804155

約数列:

[1, 5, 23, 25, 29, 31, 41, 115, 145, 155, 205, 575, 667, 713, 725, 775, 899, 943, 1025, 1189, 1271, 3335, 3565, 4495, 4715, 5945, 6355, 16675, 17825, 20677, 22475, 23575, 27347, 29233, 29725, 31775, 36859, 103385, 136735, 146165, 184295, 516925, 683675, 730825, 847757, 921475, 4238785, 21193925]

約数ペア:

[(1, 21193925), (5, 4238785), (23, 921475), (25, 847757), (29, 730825), (31, 683675), (41, 516925), (115, 184295), (145, 146165), (155, 136735), (205, 103385), (575, 36859), (667, 31775), (713, 29725), (725, 29233), (775, 27347), (899, 23575), (943, 22475), (1025, 20677), (1189, 17825), (1271, 16675), (3335, 6355), (3565, 5945), (4495, 4715)]