21103698348

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{135353}}^1$

素因数の和:135495

約数の個数: 72

約数和(自身を含む): 54984043296

約数和(自身を除く): 33880344948

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 71, 122, 142, 183, 213, 244, 284, 366, 426, 549, 639, 732, 852, 1098, 1278, 2196, 2556, 4331, 8662, 12993, 17324, 25986, 38979, 51972, 77958, 135353, 155916, 270706, 406059, 541412, 812118, 1218177, 1624236, 2436354, 4872708, 8256533, 9610063, 16513066, 19220126, 24769599, 28830189, 33026132, 38440252, 49539198, 57660378, 74308797, 86490567, 99078396, 115320756, 148617594, 172981134, 297235188, 345962268, 586213843, 1172427686, 1758641529, 2344855372, 3517283058, 5275924587, 7034566116, 10551849174, 21103698348]

約数ペア:

[(1, 21103698348), (2, 10551849174), (3, 7034566116), (4, 5275924587), (6, 3517283058), (9, 2344855372), (12, 1758641529), (18, 1172427686), (36, 586213843), (61, 345962268), (71, 297235188), (122, 172981134), (142, 148617594), (183, 115320756), (213, 99078396), (244, 86490567), (284, 74308797), (366, 57660378), (426, 49539198), (549, 38440252), (639, 33026132), (732, 28830189), (852, 24769599), (1098, 19220126), (1278, 16513066), (2196, 9610063), (2556, 8256533), (4331, 4872708), (8662, 2436354), (12993, 1624236), (17324, 1218177), (25986, 812118), (38979, 541412), (51972, 406059), (77958, 270706), (135353, 155916)]