21651800

素因数分解:

$2^3\times 5^2\times {\mathrm{73}}^1\times {\mathrm{1483}}^1$

素因数の和:1572

約数の個数: 48

約数和(自身を含む): 51064440

約数和(自身を除く): 29412640

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 73, 100, 146, 200, 292, 365, 584, 730, 1460, 1483, 1825, 2920, 2966, 3650, 5932, 7300, 7415, 11864, 14600, 14830, 29660, 37075, 59320, 74150, 108259, 148300, 216518, 296600, 433036, 541295, 866072, 1082590, 2165180, 2706475, 4330360, 5412950, 10825900, 21651800]

約数ペア:

[(1, 21651800), (2, 10825900), (4, 5412950), (5, 4330360), (8, 2706475), (10, 2165180), (20, 1082590), (25, 866072), (40, 541295), (50, 433036), (73, 296600), (100, 216518), (146, 148300), (200, 108259), (292, 74150), (365, 59320), (584, 37075), (730, 29660), (1460, 14830), (1483, 14600), (1825, 11864), (2920, 7415), (2966, 7300), (3650, 5932)]