20869428

素因数分解:

$2^2\times 3^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:432

約数の個数: 48

約数和(自身を含む): 50105664

約数和(自身を除く): 29236236

約数列:

[1, 2, 3, 4, 6, 12, 67, 101, 134, 201, 202, 257, 268, 303, 402, 404, 514, 606, 771, 804, 1028, 1212, 1542, 3084, 6767, 13534, 17219, 20301, 25957, 27068, 34438, 40602, 51657, 51914, 68876, 77871, 81204, 103314, 103828, 155742, 206628, 311484, 1739119, 3478238, 5217357, 6956476, 10434714, 20869428]

約数ペア:

[(1, 20869428), (2, 10434714), (3, 6956476), (4, 5217357), (6, 3478238), (12, 1739119), (67, 311484), (101, 206628), (134, 155742), (201, 103828), (202, 103314), (257, 81204), (268, 77871), (303, 68876), (402, 51914), (404, 51657), (514, 40602), (606, 34438), (771, 27068), (804, 25957), (1028, 20301), (1212, 17219), (1542, 13534), (3084, 6767)]