81401642

素因数分解:

$2^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{11699}}^1$

素因数の和:11786

約数の個数: 24

約数和(自身を含む): 144050400

約数和(自身を除く): 62648758

約数列:

[1, 2, 7, 14, 49, 71, 98, 142, 497, 994, 3479, 6958, 11699, 23398, 81893, 163786, 573251, 830629, 1146502, 1661258, 5814403, 11628806, 40700821, 81401642]

約数ペア:

[(1, 81401642), (2, 40700821), (7, 11628806), (14, 5814403), (49, 1661258), (71, 1146502), (98, 830629), (142, 573251), (497, 163786), (994, 81893), (3479, 23398), (6958, 11699)]