21912584

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{409}}^1$

素因数の和:633

約数の個数: 32

約数和(自身を含む): 42533400

約数和(自身を除く): 20620816

約数列:

[1, 2, 4, 8, 37, 74, 148, 181, 296, 362, 409, 724, 818, 1448, 1636, 3272, 6697, 13394, 15133, 26788, 30266, 53576, 60532, 74029, 121064, 148058, 296116, 592232, 2739073, 5478146, 10956292, 21912584]

約数ペア:

[(1, 21912584), (2, 10956292), (4, 5478146), (8, 2739073), (37, 592232), (74, 296116), (148, 148058), (181, 121064), (296, 74029), (362, 60532), (409, 53576), (724, 30266), (818, 26788), (1448, 15133), (1636, 13394), (3272, 6697)]