21770788

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{167}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 43464960

約数和(自身を除く): 21694172

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 92, 109, 167, 218, 299, 334, 436, 598, 668, 1196, 1417, 2171, 2507, 2834, 3841, 4342, 5014, 5668, 7682, 8684, 10028, 15364, 18203, 32591, 36406, 49933, 65182, 72812, 99866, 130364, 199732, 236639, 418669, 473278, 837338, 946556, 1674676, 5442697, 10885394, 21770788]

約数ペア:

[(1, 21770788), (2, 10885394), (4, 5442697), (13, 1674676), (23, 946556), (26, 837338), (46, 473278), (52, 418669), (92, 236639), (109, 199732), (167, 130364), (218, 99866), (299, 72812), (334, 65182), (436, 49933), (598, 36406), (668, 32591), (1196, 18203), (1417, 15364), (2171, 10028), (2507, 8684), (2834, 7682), (3841, 5668), (4342, 5014)]