20464227

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{487}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 36541440

約数和(自身を除く): 16077213

約数列:

[1, 3, 7, 9, 21, 23, 29, 63, 69, 87, 161, 203, 207, 261, 483, 487, 609, 667, 1449, 1461, 1827, 2001, 3409, 4383, 4669, 6003, 10227, 11201, 14007, 14123, 30681, 33603, 42021, 42369, 78407, 98861, 100809, 127107, 235221, 296583, 324829, 705663, 889749, 974487, 2273803, 2923461, 6821409, 20464227]

約数ペア:

[(1, 20464227), (3, 6821409), (7, 2923461), (9, 2273803), (21, 974487), (23, 889749), (29, 705663), (63, 324829), (69, 296583), (87, 235221), (161, 127107), (203, 100809), (207, 98861), (261, 78407), (483, 42369), (487, 42021), (609, 33603), (667, 30681), (1449, 14123), (1461, 14007), (1827, 11201), (2001, 10227), (3409, 6003), (4383, 4669)]