215540458

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{2521}}^1$

素因数の和:2758

約数の個数: 32

約数和(自身を含む): 383505408

約数和(自身を除く): 167964950

約数列:

[1, 2, 7, 14, 31, 62, 197, 217, 394, 434, 1379, 2521, 2758, 5042, 6107, 12214, 17647, 35294, 42749, 78151, 85498, 156302, 496637, 547057, 993274, 1094114, 3476459, 6952918, 15395747, 30791494, 107770229, 215540458]

約数ペア:

[(1, 215540458), (2, 107770229), (7, 30791494), (14, 15395747), (31, 6952918), (62, 3476459), (197, 1094114), (217, 993274), (394, 547057), (434, 496637), (1379, 156302), (2521, 85498), (2758, 78151), (5042, 42749), (6107, 35294), (12214, 17647)]