21955250

素因数分解:

$2^1\times 5^3\times {\mathrm{53}}^1\times {\mathrm{1657}}^1$

素因数の和:1727

約数の個数: 32

約数和(自身を含む): 41900976

約数和(自身を除く): 19945726

約数列:

[1, 2, 5, 10, 25, 50, 53, 106, 125, 250, 265, 530, 1325, 1657, 2650, 3314, 6625, 8285, 13250, 16570, 41425, 82850, 87821, 175642, 207125, 414250, 439105, 878210, 2195525, 4391050, 10977625, 21955250]

約数ペア:

[(1, 21955250), (2, 10977625), (5, 4391050), (10, 2195525), (25, 878210), (50, 439105), (53, 414250), (106, 207125), (125, 175642), (250, 87821), (265, 82850), (530, 41425), (1325, 16570), (1657, 13250), (2650, 8285), (3314, 6625)]