21062748

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{317}}^1$

素因数の和:451

約数の個数: 72

約数和(自身を含む): 57858192

約数和(自身を除く): 36795444

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 113, 147, 196, 226, 294, 317, 339, 452, 588, 634, 678, 791, 951, 1268, 1356, 1582, 1902, 2219, 2373, 3164, 3804, 4438, 4746, 5537, 6657, 8876, 9492, 11074, 13314, 15533, 16611, 22148, 26628, 31066, 33222, 35821, 46599, 62132, 66444, 71642, 93198, 107463, 143284, 186396, 214926, 250747, 429852, 501494, 752241, 1002988, 1504482, 1755229, 3008964, 3510458, 5265687, 7020916, 10531374, 21062748]

約数ペア:

[(1, 21062748), (2, 10531374), (3, 7020916), (4, 5265687), (6, 3510458), (7, 3008964), (12, 1755229), (14, 1504482), (21, 1002988), (28, 752241), (42, 501494), (49, 429852), (84, 250747), (98, 214926), (113, 186396), (147, 143284), (196, 107463), (226, 93198), (294, 71642), (317, 66444), (339, 62132), (452, 46599), (588, 35821), (634, 33222), (678, 31066), (791, 26628), (951, 22148), (1268, 16611), (1356, 15533), (1582, 13314), (1902, 11074), (2219, 9492), (2373, 8876), (3164, 6657), (3804, 5537), (4438, 4746)]