21888990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{2273}}^1$

素因数の和:2393

約数の個数: 48

約数和(自身を含む): 57468528

約数和(自身を除く): 35579538

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 107, 214, 321, 535, 642, 963, 1070, 1605, 1926, 2273, 3210, 4546, 4815, 6819, 9630, 11365, 13638, 20457, 22730, 34095, 40914, 68190, 102285, 204570, 243211, 486422, 729633, 1216055, 1459266, 2188899, 2432110, 3648165, 4377798, 7296330, 10944495, 21888990]

約数ペア:

[(1, 21888990), (2, 10944495), (3, 7296330), (5, 4377798), (6, 3648165), (9, 2432110), (10, 2188899), (15, 1459266), (18, 1216055), (30, 729633), (45, 486422), (90, 243211), (107, 204570), (214, 102285), (321, 68190), (535, 40914), (642, 34095), (963, 22730), (1070, 20457), (1605, 13638), (1926, 11365), (2273, 9630), (3210, 6819), (4546, 4815)]