221142995

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1231}}^1$

素因数の和:1347

約数の個数: 32

約数和(自身を含む): 293314560

約数和(自身を除く): 72171565

約数列:

[1, 5, 19, 31, 61, 95, 155, 305, 589, 1159, 1231, 1891, 2945, 5795, 6155, 9455, 23389, 35929, 38161, 75091, 116945, 179645, 190805, 375455, 725059, 1426729, 2327821, 3625295, 7133645, 11639105, 44228599, 221142995]

約数ペア:

[(1, 221142995), (5, 44228599), (19, 11639105), (31, 7133645), (61, 3625295), (95, 2327821), (155, 1426729), (305, 725059), (589, 375455), (1159, 190805), (1231, 179645), (1891, 116945), (2945, 75091), (5795, 38161), (6155, 35929), (9455, 23389)]