19891656

素因数分解:

$2^3\times 3^4\times {\mathrm{30697}}^1$

素因数の和:30715

約数の個数: 40

約数和(自身を含む): 55716870

約数和(自身を除く): 35825214

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 30697, 61394, 92091, 122788, 184182, 245576, 276273, 368364, 552546, 736728, 828819, 1105092, 1657638, 2210184, 2486457, 3315276, 4972914, 6630552, 9945828, 19891656]

約数ペア:

[(1, 19891656), (2, 9945828), (3, 6630552), (4, 4972914), (6, 3315276), (8, 2486457), (9, 2210184), (12, 1657638), (18, 1105092), (24, 828819), (27, 736728), (36, 552546), (54, 368364), (72, 276273), (81, 245576), (108, 184182), (162, 122788), (216, 92091), (324, 61394), (648, 30697)]