21753885

素因数分解:

$3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 35779968

約数和(自身を除く): 14026083

約数列:

[1, 3, 5, 15, 83, 101, 173, 249, 303, 415, 505, 519, 865, 1245, 1515, 2595, 8383, 14359, 17473, 25149, 41915, 43077, 52419, 71795, 87365, 125745, 215385, 262095, 1450259, 4350777, 7251295, 21753885]

約数ペア:

[(1, 21753885), (3, 7251295), (5, 4350777), (15, 1450259), (83, 262095), (101, 215385), (173, 125745), (249, 87365), (303, 71795), (415, 52419), (505, 43077), (519, 41915), (865, 25149), (1245, 17473), (1515, 14359), (2595, 8383)]