1211193

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{787}}^1$

素因数の和:818

約数の個数: 20

約数和(自身を含む): 1906960

約数和(自身を除く): 695767

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 787, 1539, 2361, 7083, 14953, 21249, 44859, 63747, 134577, 403731, 1211193]

約数ペア:

[(1, 1211193), (3, 403731), (9, 134577), (19, 63747), (27, 44859), (57, 21249), (81, 14953), (171, 7083), (513, 2361), (787, 1539)]