21973518

素因数分解:

$2^1\times 3^6\times 7^1\times {\mathrm{2153}}^1$

素因数の和:2180

約数の個数: 56

約数和(自身を含む): 56503728

約数和(自身を除く): 34530210

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 243, 378, 486, 567, 729, 1134, 1458, 1701, 2153, 3402, 4306, 5103, 6459, 10206, 12918, 15071, 19377, 30142, 38754, 45213, 58131, 90426, 116262, 135639, 174393, 271278, 348786, 406917, 523179, 813834, 1046358, 1220751, 1569537, 2441502, 3139074, 3662253, 7324506, 10986759, 21973518]

約数ペア:

[(1, 21973518), (2, 10986759), (3, 7324506), (6, 3662253), (7, 3139074), (9, 2441502), (14, 1569537), (18, 1220751), (21, 1046358), (27, 813834), (42, 523179), (54, 406917), (63, 348786), (81, 271278), (126, 174393), (162, 135639), (189, 116262), (243, 90426), (378, 58131), (486, 45213), (567, 38754), (729, 30142), (1134, 19377), (1458, 15071), (1701, 12918), (2153, 10206), (3402, 6459), (4306, 5103)]