21770752

素因数分解:

$2^9\times {\mathrm{101}}^1\times {\mathrm{421}}^1$

素因数の和:540

約数の個数: 40

約数和(自身を含む): 44034012

約数和(自身を除く): 22263260

約数列:

[1, 2, 4, 8, 16, 32, 64, 101, 128, 202, 256, 404, 421, 512, 808, 842, 1616, 1684, 3232, 3368, 6464, 6736, 12928, 13472, 25856, 26944, 42521, 51712, 53888, 85042, 107776, 170084, 215552, 340168, 680336, 1360672, 2721344, 5442688, 10885376, 21770752]

約数ペア:

[(1, 21770752), (2, 10885376), (4, 5442688), (8, 2721344), (16, 1360672), (32, 680336), (64, 340168), (101, 215552), (128, 170084), (202, 107776), (256, 85042), (404, 53888), (421, 51712), (512, 42521), (808, 26944), (842, 25856), (1616, 13472), (1684, 12928), (3232, 6736), (3368, 6464)]