18934515

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{467}}^1$

素因数の和:548

約数の個数: 48

約数和(自身を含む): 35481888

約数和(自身を除く): 16547373

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 53, 85, 153, 159, 255, 265, 467, 477, 765, 795, 901, 1401, 2335, 2385, 2703, 4203, 4505, 7005, 7939, 8109, 13515, 21015, 23817, 24751, 39695, 40545, 71451, 74253, 119085, 123755, 222759, 357255, 371265, 420767, 1113795, 1262301, 2103835, 3786903, 6311505, 18934515]

約数ペア:

[(1, 18934515), (3, 6311505), (5, 3786903), (9, 2103835), (15, 1262301), (17, 1113795), (45, 420767), (51, 371265), (53, 357255), (85, 222759), (153, 123755), (159, 119085), (255, 74253), (265, 71451), (467, 40545), (477, 39695), (765, 24751), (795, 23817), (901, 21015), (1401, 13515), (2335, 8109), (2385, 7939), (2703, 7005), (4203, 4505)]