21990204

素因数分解:

$2^2\times 3^4\times {\mathrm{67}}^1\times {\mathrm{1013}}^1$

素因数の和:1096

約数の個数: 60

約数和(自身を含む): 58402344

約数和(自身を除く): 36412140

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 67, 81, 108, 134, 162, 201, 268, 324, 402, 603, 804, 1013, 1206, 1809, 2026, 2412, 3039, 3618, 4052, 5427, 6078, 7236, 9117, 10854, 12156, 18234, 21708, 27351, 36468, 54702, 67871, 82053, 109404, 135742, 164106, 203613, 271484, 328212, 407226, 610839, 814452, 1221678, 1832517, 2443356, 3665034, 5497551, 7330068, 10995102, 21990204]

約数ペア:

[(1, 21990204), (2, 10995102), (3, 7330068), (4, 5497551), (6, 3665034), (9, 2443356), (12, 1832517), (18, 1221678), (27, 814452), (36, 610839), (54, 407226), (67, 328212), (81, 271484), (108, 203613), (134, 164106), (162, 135742), (201, 109404), (268, 82053), (324, 67871), (402, 54702), (603, 36468), (804, 27351), (1013, 21708), (1206, 18234), (1809, 12156), (2026, 10854), (2412, 9117), (3039, 7236), (3618, 6078), (4052, 5427)]