217871841

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{8081}}^1$

素因数の和:8157

約数の個数: 32

約数和(自身を含む): 341383680

約数和(自身を除く): 123511839

約数列:

[1, 3, 11, 19, 33, 43, 57, 129, 209, 473, 627, 817, 1419, 2451, 8081, 8987, 24243, 26961, 88891, 153539, 266673, 347483, 460617, 1042449, 1688929, 3822313, 5066787, 6602177, 11466939, 19806531, 72623947, 217871841]

約数ペア:

[(1, 217871841), (3, 72623947), (11, 19806531), (19, 11466939), (33, 6602177), (43, 5066787), (57, 3822313), (129, 1688929), (209, 1042449), (473, 460617), (627, 347483), (817, 266673), (1419, 153539), (2451, 88891), (8081, 26961), (8987, 24243)]