20211761486

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1\times {\mathrm{117307}}^1$

素因数の和:117744

約数の個数: 32

約数和(自身を含む): 35856832512

約数和(自身を除く): 15645071026

約数列:

[1, 2, 7, 14, 31, 62, 217, 397, 434, 794, 2779, 5558, 12307, 24614, 86149, 117307, 172298, 234614, 821149, 1642298, 3636517, 7273034, 25455619, 46570879, 50911238, 93141758, 325996153, 651992306, 1443697249, 2887394498, 10105880743, 20211761486]

約数ペア:

[(1, 20211761486), (2, 10105880743), (7, 2887394498), (14, 1443697249), (31, 651992306), (62, 325996153), (217, 93141758), (397, 50911238), (434, 46570879), (794, 25455619), (2779, 7273034), (5558, 3636517), (12307, 1642298), (24614, 821149), (86149, 234614), (117307, 172298)]