21721170

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{263}}^1\times {\mathrm{2753}}^1$

素因数の和:3026

約数の個数: 32

約数和(自身を含む): 52348032

約数和(自身を除く): 30626862

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 263, 526, 789, 1315, 1578, 2630, 2753, 3945, 5506, 7890, 8259, 13765, 16518, 27530, 41295, 82590, 724039, 1448078, 2172117, 3620195, 4344234, 7240390, 10860585, 21721170]

約数ペア:

[(1, 21721170), (2, 10860585), (3, 7240390), (5, 4344234), (6, 3620195), (10, 2172117), (15, 1448078), (30, 724039), (263, 82590), (526, 41295), (789, 27530), (1315, 16518), (1578, 13765), (2630, 8259), (2753, 7890), (3945, 5506)]