21478412

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1$

素因数の和:518

約数の個数: 48

約数和(自身を含む): 42964992

約数和(自身を除く): 21486580

約数列:

[1, 2, 4, 17, 23, 31, 34, 46, 62, 68, 92, 124, 391, 443, 527, 713, 782, 886, 1054, 1426, 1564, 1772, 2108, 2852, 7531, 10189, 12121, 13733, 15062, 20378, 24242, 27466, 30124, 40756, 48484, 54932, 173213, 233461, 315859, 346426, 466922, 631718, 692852, 933844, 1263436, 5369603, 10739206, 21478412]

約数ペア:

[(1, 21478412), (2, 10739206), (4, 5369603), (17, 1263436), (23, 933844), (31, 692852), (34, 631718), (46, 466922), (62, 346426), (68, 315859), (92, 233461), (124, 173213), (391, 54932), (443, 48484), (527, 40756), (713, 30124), (782, 27466), (886, 24242), (1054, 20378), (1426, 15062), (1564, 13733), (1772, 12121), (2108, 10189), (2852, 7531)]