22017905

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 34320384

約数和(自身を除く): 12302479

約数列:

[1, 5, 7, 13, 31, 35, 49, 65, 91, 155, 217, 223, 245, 403, 455, 637, 1085, 1115, 1519, 1561, 2015, 2821, 2899, 3185, 6913, 7595, 7805, 10927, 14105, 14495, 19747, 20293, 34565, 48391, 54635, 89869, 98735, 101465, 142051, 241955, 338737, 449345, 629083, 710255, 1693685, 3145415, 4403581, 22017905]

約数ペア:

[(1, 22017905), (5, 4403581), (7, 3145415), (13, 1693685), (31, 710255), (35, 629083), (49, 449345), (65, 338737), (91, 241955), (155, 142051), (217, 101465), (223, 98735), (245, 89869), (403, 54635), (455, 48391), (637, 34565), (1085, 20293), (1115, 19747), (1519, 14495), (1561, 14105), (2015, 10927), (2821, 7805), (2899, 7595), (3185, 6913)]