216957117

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1\times {\mathrm{563}}^1$

素因数の和:861

約数の個数: 32

約数和(自身を含む): 321019776

約数和(自身を除く): 104062659

約数列:

[1, 3, 13, 39, 41, 123, 241, 533, 563, 723, 1599, 1689, 3133, 7319, 9399, 9881, 21957, 23083, 29643, 69249, 128453, 135683, 300079, 385359, 407049, 900237, 1763879, 5291637, 5563003, 16689009, 72319039, 216957117]

約数ペア:

[(1, 216957117), (3, 72319039), (13, 16689009), (39, 5563003), (41, 5291637), (123, 1763879), (241, 900237), (533, 407049), (563, 385359), (723, 300079), (1599, 135683), (1689, 128453), (3133, 69249), (7319, 29643), (9399, 23083), (9881, 21957)]