21091212

素因数分解:

$2^2\times 3^3\times {\mathrm{179}}^1\times {\mathrm{1091}}^1$

素因数の和:1283

約数の個数: 48

約数和(自身を含む): 55036800

約数和(自身を除く): 33945588

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 179, 358, 537, 716, 1074, 1091, 1611, 2148, 2182, 3222, 3273, 4364, 4833, 6444, 6546, 9666, 9819, 13092, 19332, 19638, 29457, 39276, 58914, 117828, 195289, 390578, 585867, 781156, 1171734, 1757601, 2343468, 3515202, 5272803, 7030404, 10545606, 21091212]

約数ペア:

[(1, 21091212), (2, 10545606), (3, 7030404), (4, 5272803), (6, 3515202), (9, 2343468), (12, 1757601), (18, 1171734), (27, 781156), (36, 585867), (54, 390578), (108, 195289), (179, 117828), (358, 58914), (537, 39276), (716, 29457), (1074, 19638), (1091, 19332), (1611, 13092), (2148, 9819), (2182, 9666), (3222, 6546), (3273, 6444), (4364, 4833)]