81441738

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{317}}^1\times {\mathrm{2039}}^1$

素因数の和:2371

約数の個数: 48

約数和(自身を含む): 202400640

約数和(自身を除く): 120958902

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 317, 634, 951, 1902, 2039, 2219, 2853, 4078, 4438, 5706, 6117, 6657, 12234, 13314, 14273, 18351, 19971, 28546, 36702, 39942, 42819, 85638, 128457, 256914, 646363, 1292726, 1939089, 3878178, 4524541, 5817267, 9049082, 11634534, 13573623, 27147246, 40720869, 81441738]

約数ペア:

[(1, 81441738), (2, 40720869), (3, 27147246), (6, 13573623), (7, 11634534), (9, 9049082), (14, 5817267), (18, 4524541), (21, 3878178), (42, 1939089), (63, 1292726), (126, 646363), (317, 256914), (634, 128457), (951, 85638), (1902, 42819), (2039, 39942), (2219, 36702), (2853, 28546), (4078, 19971), (4438, 18351), (5706, 14273), (6117, 13314), (6657, 12234)]