31980879

素因数分解:

$3^3\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1051}}^1$

素因数の和:1097

約数の個数: 48

約数和(自身を含む): 57565440

約数和(自身を除く): 25584561

約数列:

[1, 3, 7, 9, 21, 23, 27, 49, 63, 69, 147, 161, 189, 207, 441, 483, 621, 1051, 1127, 1323, 1449, 3153, 3381, 4347, 7357, 9459, 10143, 22071, 24173, 28377, 30429, 51499, 66213, 72519, 154497, 169211, 198639, 217557, 463491, 507633, 652671, 1184477, 1390473, 1522899, 3553431, 4568697, 10660293, 31980879]

約数ペア:

[(1, 31980879), (3, 10660293), (7, 4568697), (9, 3553431), (21, 1522899), (23, 1390473), (27, 1184477), (49, 652671), (63, 507633), (69, 463491), (147, 217557), (161, 198639), (189, 169211), (207, 154497), (441, 72519), (483, 66213), (621, 51499), (1051, 30429), (1127, 28377), (1323, 24173), (1449, 22071), (3153, 10143), (3381, 9459), (4347, 7357)]