21489666

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{179}}^1$

素因数の和:319

約数の個数: 64

約数和(自身を含む): 50388480

約数和(自身を除く): 28898814

約数列:

[1, 2, 3, 6, 11, 17, 22, 33, 34, 51, 66, 102, 107, 179, 187, 214, 321, 358, 374, 537, 561, 642, 1074, 1122, 1177, 1819, 1969, 2354, 3043, 3531, 3638, 3938, 5457, 5907, 6086, 7062, 9129, 10914, 11814, 18258, 19153, 20009, 33473, 38306, 40018, 57459, 60027, 66946, 100419, 114918, 120054, 200838, 210683, 325601, 421366, 632049, 651202, 976803, 1264098, 1953606, 3581611, 7163222, 10744833, 21489666]

約数ペア:

[(1, 21489666), (2, 10744833), (3, 7163222), (6, 3581611), (11, 1953606), (17, 1264098), (22, 976803), (33, 651202), (34, 632049), (51, 421366), (66, 325601), (102, 210683), (107, 200838), (179, 120054), (187, 114918), (214, 100419), (321, 66946), (358, 60027), (374, 57459), (537, 40018), (561, 38306), (642, 33473), (1074, 20009), (1122, 19153), (1177, 18258), (1819, 11814), (1969, 10914), (2354, 9129), (3043, 7062), (3531, 6086), (3638, 5907), (3938, 5457)]