21535410

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55219}}^1$

素因数の和:55242

約数の個数: 32

約数和(自身を含む): 55661760

約数和(自身を除く): 34126350

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 55219, 110438, 165657, 276095, 331314, 552190, 717847, 828285, 1435694, 1656570, 2153541, 3589235, 4307082, 7178470, 10767705, 21535410]

約数ペア:

[(1, 21535410), (2, 10767705), (3, 7178470), (5, 4307082), (6, 3589235), (10, 2153541), (13, 1656570), (15, 1435694), (26, 828285), (30, 717847), (39, 552190), (65, 331314), (78, 276095), (130, 165657), (195, 110438), (390, 55219)]