21436376

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 45830400

約数和(自身を除く): 24394024

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 61, 62, 104, 109, 122, 124, 218, 244, 248, 403, 436, 488, 793, 806, 872, 1417, 1586, 1612, 1891, 2834, 3172, 3224, 3379, 3782, 5668, 6344, 6649, 6758, 7564, 11336, 13298, 13516, 15128, 24583, 26596, 27032, 43927, 49166, 53192, 86437, 87854, 98332, 172874, 175708, 196664, 206119, 345748, 351416, 412238, 691496, 824476, 1648952, 2679547, 5359094, 10718188, 21436376]

約数ペア:

[(1, 21436376), (2, 10718188), (4, 5359094), (8, 2679547), (13, 1648952), (26, 824476), (31, 691496), (52, 412238), (61, 351416), (62, 345748), (104, 206119), (109, 196664), (122, 175708), (124, 172874), (218, 98332), (244, 87854), (248, 86437), (403, 53192), (436, 49166), (488, 43927), (793, 27032), (806, 26596), (872, 24583), (1417, 15128), (1586, 13516), (1612, 13298), (1891, 11336), (2834, 7564), (3172, 6758), (3224, 6649), (3379, 6344), (3782, 5668)]