21586240

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5189}}^1$

素因数の和:5219

約数の個数: 56

約数和(自身を含む): 55366920

約数和(自身を除く): 33780680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 5189, 10378, 20756, 25945, 41512, 51890, 67457, 83024, 103780, 134914, 166048, 207560, 269828, 332096, 337285, 415120, 539656, 674570, 830240, 1079312, 1349140, 1660480, 2158624, 2698280, 4317248, 5396560, 10793120, 21586240]

約数ペア:

[(1, 21586240), (2, 10793120), (4, 5396560), (5, 4317248), (8, 2698280), (10, 2158624), (13, 1660480), (16, 1349140), (20, 1079312), (26, 830240), (32, 674570), (40, 539656), (52, 415120), (64, 337285), (65, 332096), (80, 269828), (104, 207560), (130, 166048), (160, 134914), (208, 103780), (260, 83024), (320, 67457), (416, 51890), (520, 41512), (832, 25945), (1040, 20756), (2080, 10378), (4160, 5189)]