21574420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2111}}^1$

素因数の和:2200

約数の個数: 48

約数和(自身を含む): 52512768

約数和(自身を除く): 30938348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1460, 2044, 2111, 2555, 4222, 5110, 8444, 10220, 10555, 14777, 21110, 29554, 42220, 59108, 73885, 147770, 154103, 295540, 308206, 616412, 770515, 1078721, 1541030, 2157442, 3082060, 4314884, 5393605, 10787210, 21574420]

約数ペア:

[(1, 21574420), (2, 10787210), (4, 5393605), (5, 4314884), (7, 3082060), (10, 2157442), (14, 1541030), (20, 1078721), (28, 770515), (35, 616412), (70, 308206), (73, 295540), (140, 154103), (146, 147770), (292, 73885), (365, 59108), (511, 42220), (730, 29554), (1022, 21110), (1460, 14777), (2044, 10555), (2111, 10220), (2555, 8444), (4222, 5110)]