21645828

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{313}}^1$

素因数の和:453

約数の個数: 72

約数和(自身を含む): 58633848

約数和(自身を除く): 36988020

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 113, 153, 204, 226, 306, 313, 339, 452, 612, 626, 678, 939, 1017, 1252, 1356, 1878, 1921, 2034, 2817, 3756, 3842, 4068, 5321, 5634, 5763, 7684, 10642, 11268, 11526, 15963, 17289, 21284, 23052, 31926, 34578, 35369, 47889, 63852, 69156, 70738, 95778, 106107, 141476, 191556, 212214, 318321, 424428, 601273, 636642, 1202546, 1273284, 1803819, 2405092, 3607638, 5411457, 7215276, 10822914, 21645828]

約数ペア:

[(1, 21645828), (2, 10822914), (3, 7215276), (4, 5411457), (6, 3607638), (9, 2405092), (12, 1803819), (17, 1273284), (18, 1202546), (34, 636642), (36, 601273), (51, 424428), (68, 318321), (102, 212214), (113, 191556), (153, 141476), (204, 106107), (226, 95778), (306, 70738), (313, 69156), (339, 63852), (452, 47889), (612, 35369), (626, 34578), (678, 31926), (939, 23052), (1017, 21284), (1252, 17289), (1356, 15963), (1878, 11526), (1921, 11268), (2034, 10642), (2817, 7684), (3756, 5763), (3842, 5634), (4068, 5321)]