21106340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{829}}^1$

素因数の和:924

約数の個数: 48

約数和(自身を含む): 47409600

約数和(自身を除く): 26303260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 67, 76, 95, 134, 190, 268, 335, 380, 670, 829, 1273, 1340, 1658, 2546, 3316, 4145, 5092, 6365, 8290, 12730, 15751, 16580, 25460, 31502, 55543, 63004, 78755, 111086, 157510, 222172, 277715, 315020, 555430, 1055317, 1110860, 2110634, 4221268, 5276585, 10553170, 21106340]

約数ペア:

[(1, 21106340), (2, 10553170), (4, 5276585), (5, 4221268), (10, 2110634), (19, 1110860), (20, 1055317), (38, 555430), (67, 315020), (76, 277715), (95, 222172), (134, 157510), (190, 111086), (268, 78755), (335, 63004), (380, 55543), (670, 31502), (829, 25460), (1273, 16580), (1340, 15751), (1658, 12730), (2546, 8290), (3316, 6365), (4145, 5092)]