9921951

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{619}}^1$

素因数の和:775

約数の個数: 24

約数和(自身を含む): 15571920

約数和(自身を除く): 5649969

約数列:

[1, 3, 9, 13, 39, 117, 137, 411, 619, 1233, 1781, 1857, 5343, 5571, 8047, 16029, 24141, 72423, 84803, 254409, 763227, 1102439, 3307317, 9921951]

約数ペア:

[(1, 9921951), (3, 3307317), (9, 1102439), (13, 763227), (39, 254409), (117, 84803), (137, 72423), (411, 24141), (619, 16029), (1233, 8047), (1781, 5571), (1857, 5343)]