21397254

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1$

素因数の和:221

約数の個数: 64

約数和(自身を含む): 47941632

約数和(自身を除く): 26544378

約数列:

[1, 2, 3, 6, 17, 31, 34, 51, 62, 67, 93, 101, 102, 134, 186, 201, 202, 303, 402, 527, 606, 1054, 1139, 1581, 1717, 2077, 2278, 3131, 3162, 3417, 3434, 4154, 5151, 6231, 6262, 6767, 6834, 9393, 10302, 12462, 13534, 18786, 20301, 35309, 40602, 53227, 70618, 105927, 106454, 115039, 159681, 209777, 211854, 230078, 319362, 345117, 419554, 629331, 690234, 1258662, 3566209, 7132418, 10698627, 21397254]

約数ペア:

[(1, 21397254), (2, 10698627), (3, 7132418), (6, 3566209), (17, 1258662), (31, 690234), (34, 629331), (51, 419554), (62, 345117), (67, 319362), (93, 230078), (101, 211854), (102, 209777), (134, 159681), (186, 115039), (201, 106454), (202, 105927), (303, 70618), (402, 53227), (527, 40602), (606, 35309), (1054, 20301), (1139, 18786), (1581, 13534), (1717, 12462), (2077, 10302), (2278, 9393), (3131, 6834), (3162, 6767), (3417, 6262), (3434, 6231), (4154, 5151)]