20851446

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{373}}^1$

素因数の和:418

約数の個数: 64

約数和(自身を含む): 52563456

約数和(自身を除く): 31712010

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 121, 154, 231, 242, 363, 373, 462, 726, 746, 847, 1119, 1331, 1694, 2238, 2541, 2611, 2662, 3993, 4103, 5082, 5222, 7833, 7986, 8206, 9317, 12309, 15666, 18634, 24618, 27951, 28721, 45133, 55902, 57442, 86163, 90266, 135399, 172326, 270798, 315931, 496463, 631862, 947793, 992926, 1489389, 1895586, 2978778, 3475241, 6950482, 10425723, 20851446]

約数ペア:

[(1, 20851446), (2, 10425723), (3, 6950482), (6, 3475241), (7, 2978778), (11, 1895586), (14, 1489389), (21, 992926), (22, 947793), (33, 631862), (42, 496463), (66, 315931), (77, 270798), (121, 172326), (154, 135399), (231, 90266), (242, 86163), (363, 57442), (373, 55902), (462, 45133), (726, 28721), (746, 27951), (847, 24618), (1119, 18634), (1331, 15666), (1694, 12309), (2238, 9317), (2541, 8206), (2611, 7986), (2662, 7833), (3993, 5222), (4103, 5082)]