21500478

素因数分解:

$2^1\times 3^4\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1$

素因数の和:279

約数の個数: 80

約数和(自身を含む): 52637904

約数和(自身を除く): 31137426

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 37, 51, 54, 74, 81, 102, 111, 153, 162, 211, 222, 306, 333, 422, 459, 629, 633, 666, 918, 999, 1258, 1266, 1377, 1887, 1899, 1998, 2754, 2997, 3587, 3774, 3798, 5661, 5697, 5994, 7174, 7807, 10761, 11322, 11394, 15614, 16983, 17091, 21522, 23421, 32283, 33966, 34182, 46842, 50949, 64566, 70263, 96849, 101898, 132719, 140526, 193698, 210789, 265438, 290547, 398157, 421578, 581094, 632367, 796314, 1194471, 1264734, 2388942, 3583413, 7166826, 10750239, 21500478]

約数ペア:

[(1, 21500478), (2, 10750239), (3, 7166826), (6, 3583413), (9, 2388942), (17, 1264734), (18, 1194471), (27, 796314), (34, 632367), (37, 581094), (51, 421578), (54, 398157), (74, 290547), (81, 265438), (102, 210789), (111, 193698), (153, 140526), (162, 132719), (211, 101898), (222, 96849), (306, 70263), (333, 64566), (422, 50949), (459, 46842), (629, 34182), (633, 33966), (666, 32283), (918, 23421), (999, 21522), (1258, 17091), (1266, 16983), (1377, 15614), (1887, 11394), (1899, 11322), (1998, 10761), (2754, 7807), (2997, 7174), (3587, 5994), (3774, 5697), (3798, 5661)]