21203556

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{859}}^1$

素因数の和:905

約数の個数: 72

約数和(自身を含む): 57647520

約数和(自身を除く): 36443964

約数列:

[1, 2, 3, 4, 6, 11, 12, 17, 22, 33, 34, 44, 51, 66, 68, 102, 121, 132, 187, 204, 242, 363, 374, 484, 561, 726, 748, 859, 1122, 1452, 1718, 2057, 2244, 2577, 3436, 4114, 5154, 6171, 8228, 9449, 10308, 12342, 14603, 18898, 24684, 28347, 29206, 37796, 43809, 56694, 58412, 87618, 103939, 113388, 160633, 175236, 207878, 311817, 321266, 415756, 481899, 623634, 642532, 963798, 1247268, 1766963, 1927596, 3533926, 5300889, 7067852, 10601778, 21203556]

約数ペア:

[(1, 21203556), (2, 10601778), (3, 7067852), (4, 5300889), (6, 3533926), (11, 1927596), (12, 1766963), (17, 1247268), (22, 963798), (33, 642532), (34, 623634), (44, 481899), (51, 415756), (66, 321266), (68, 311817), (102, 207878), (121, 175236), (132, 160633), (187, 113388), (204, 103939), (242, 87618), (363, 58412), (374, 56694), (484, 43809), (561, 37796), (726, 29206), (748, 28347), (859, 24684), (1122, 18898), (1452, 14603), (1718, 12342), (2057, 10308), (2244, 9449), (2577, 8228), (3436, 6171), (4114, 5154)]