21136134

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 47139840

約数和(自身を除く): 26003706

約数列:

[1, 2, 3, 6, 17, 34, 43, 51, 61, 79, 86, 102, 122, 129, 158, 183, 237, 258, 366, 474, 731, 1037, 1343, 1462, 2074, 2193, 2623, 2686, 3111, 3397, 4029, 4386, 4819, 5246, 6222, 6794, 7869, 8058, 9638, 10191, 14457, 15738, 20382, 28914, 44591, 57749, 81923, 89182, 115498, 133773, 163846, 173247, 207217, 245769, 267546, 346494, 414434, 491538, 621651, 1243302, 3522689, 7045378, 10568067, 21136134]

約数ペア:

[(1, 21136134), (2, 10568067), (3, 7045378), (6, 3522689), (17, 1243302), (34, 621651), (43, 491538), (51, 414434), (61, 346494), (79, 267546), (86, 245769), (102, 207217), (122, 173247), (129, 163846), (158, 133773), (183, 115498), (237, 89182), (258, 81923), (366, 57749), (474, 44591), (731, 28914), (1037, 20382), (1343, 15738), (1462, 14457), (2074, 10191), (2193, 9638), (2623, 8058), (2686, 7869), (3111, 6794), (3397, 6222), (4029, 5246), (4386, 4819)]