21103278

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{6883}}^1$

素因数の和:6968

約数の個数: 32

約数和(自身を含む): 48903936

約数和(自身を除く): 27800658

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 73, 146, 219, 438, 511, 1022, 1533, 3066, 6883, 13766, 20649, 41298, 48181, 96362, 144543, 289086, 502459, 1004918, 1507377, 3014754, 3517213, 7034426, 10551639, 21103278]

約数ペア:

[(1, 21103278), (2, 10551639), (3, 7034426), (6, 3517213), (7, 3014754), (14, 1507377), (21, 1004918), (42, 502459), (73, 289086), (146, 144543), (219, 96362), (438, 48181), (511, 41298), (1022, 20649), (1533, 13766), (3066, 6883)]