21968960

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5281}}^1$

素因数の和:5311

約数の個数: 56

約数和(自身を含む): 56348376

約数和(自身を除く): 34379416

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, 5281, 10562, 21124, 26405, 42248, 52810, 68653, 84496, 105620, 137306, 168992, 211240, 274612, 337984, 343265, 422480, 549224, 686530, 844960, 1098448, 1373060, 1689920, 2196896, 2746120, 4393792, 5492240, 10984480, 21968960]

約数ペア:

[(1, 21968960), (2, 10984480), (4, 5492240), (5, 4393792), (8, 2746120), (10, 2196896), (13, 1689920), (16, 1373060), (20, 1098448), (26, 844960), (32, 686530), (40, 549224), (52, 422480), (64, 343265), (65, 337984), (80, 274612), (104, 211240), (130, 168992), (160, 137306), (208, 105620), (260, 84496), (320, 68653), (416, 52810), (520, 42248), (832, 26405), (1040, 21124), (2080, 10562), (4160, 5281)]