21079116

素因数分解:

$2^2\times 3^4\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:165

約数の個数: 120

約数和(自身を含む): 60374160

約数和(自身を除く): 39295044

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 43, 51, 54, 68, 81, 86, 89, 102, 108, 129, 153, 162, 172, 178, 204, 258, 267, 306, 324, 356, 387, 459, 516, 534, 612, 731, 774, 801, 918, 1068, 1161, 1377, 1462, 1513, 1548, 1602, 1836, 2193, 2322, 2403, 2754, 2924, 3026, 3204, 3483, 3827, 4386, 4539, 4644, 4806, 5508, 6052, 6579, 6966, 7209, 7654, 8772, 9078, 9612, 11481, 13158, 13617, 13932, 14418, 15308, 18156, 19737, 22962, 26316, 27234, 28836, 34443, 39474, 40851, 45924, 54468, 59211, 65059, 68886, 78948, 81702, 103329, 118422, 122553, 130118, 137772, 163404, 195177, 206658, 236844, 245106, 260236, 309987, 390354, 413316, 490212, 585531, 619974, 780708, 1171062, 1239948, 1756593, 2342124, 3513186, 5269779, 7026372, 10539558, 21079116]

約数ペア:

[(1, 21079116), (2, 10539558), (3, 7026372), (4, 5269779), (6, 3513186), (9, 2342124), (12, 1756593), (17, 1239948), (18, 1171062), (27, 780708), (34, 619974), (36, 585531), (43, 490212), (51, 413316), (54, 390354), (68, 309987), (81, 260236), (86, 245106), (89, 236844), (102, 206658), (108, 195177), (129, 163404), (153, 137772), (162, 130118), (172, 122553), (178, 118422), (204, 103329), (258, 81702), (267, 78948), (306, 68886), (324, 65059), (356, 59211), (387, 54468), (459, 45924), (516, 40851), (534, 39474), (612, 34443), (731, 28836), (774, 27234), (801, 26316), (918, 22962), (1068, 19737), (1161, 18156), (1377, 15308), (1462, 14418), (1513, 13932), (1548, 13617), (1602, 13158), (1836, 11481), (2193, 9612), (2322, 9078), (2403, 8772), (2754, 7654), (2924, 7209), (3026, 6966), (3204, 6579), (3483, 6052), (3827, 5508), (4386, 4806), (4539, 4644)]