21129264

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{11287}}^1$

素因数の和:11314

約数の個数: 60

約数和(自身を含む): 63686896

約数和(自身を除く): 42557632

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 312, 468, 624, 936, 1872, 11287, 22574, 33861, 45148, 67722, 90296, 101583, 135444, 146731, 180592, 203166, 270888, 293462, 406332, 440193, 541776, 586924, 812664, 880386, 1173848, 1320579, 1625328, 1760772, 2347696, 2641158, 3521544, 5282316, 7043088, 10564632, 21129264]

約数ペア:

[(1, 21129264), (2, 10564632), (3, 7043088), (4, 5282316), (6, 3521544), (8, 2641158), (9, 2347696), (12, 1760772), (13, 1625328), (16, 1320579), (18, 1173848), (24, 880386), (26, 812664), (36, 586924), (39, 541776), (48, 440193), (52, 406332), (72, 293462), (78, 270888), (104, 203166), (117, 180592), (144, 146731), (156, 135444), (208, 101583), (234, 90296), (312, 67722), (468, 45148), (624, 33861), (936, 22574), (1872, 11287)]