421689969

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{257}}^1\times {\mathrm{431}}^1$

素因数の和:747

約数の個数: 40

約数和(自身を含む): 647336448

約数和(自身を除く): 225646479

約数列:

[1, 3, 9, 27, 47, 81, 141, 257, 423, 431, 771, 1269, 1293, 2313, 3807, 3879, 6939, 11637, 12079, 20257, 20817, 34911, 36237, 60771, 108711, 110767, 182313, 326133, 332301, 546939, 978399, 996903, 1640817, 2990709, 5206049, 8972127, 15618147, 46854441, 140563323, 421689969]

約数ペア:

[(1, 421689969), (3, 140563323), (9, 46854441), (27, 15618147), (47, 8972127), (81, 5206049), (141, 2990709), (257, 1640817), (423, 996903), (431, 978399), (771, 546939), (1269, 332301), (1293, 326133), (2313, 182313), (3807, 110767), (3879, 108711), (6939, 60771), (11637, 36237), (12079, 34911), (20257, 20817)]