21188052

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{389}}^1$

素因数の和:505

約数の個数: 72

約数和(自身を含む): 57493800

約数和(自身を除く): 36305748

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 89, 102, 153, 178, 204, 267, 306, 356, 389, 534, 612, 778, 801, 1068, 1167, 1513, 1556, 1602, 2334, 3026, 3204, 3501, 4539, 4668, 6052, 6613, 7002, 9078, 13226, 13617, 14004, 18156, 19839, 26452, 27234, 34621, 39678, 54468, 59517, 69242, 79356, 103863, 119034, 138484, 207726, 238068, 311589, 415452, 588557, 623178, 1177114, 1246356, 1765671, 2354228, 3531342, 5297013, 7062684, 10594026, 21188052]

約数ペア:

[(1, 21188052), (2, 10594026), (3, 7062684), (4, 5297013), (6, 3531342), (9, 2354228), (12, 1765671), (17, 1246356), (18, 1177114), (34, 623178), (36, 588557), (51, 415452), (68, 311589), (89, 238068), (102, 207726), (153, 138484), (178, 119034), (204, 103863), (267, 79356), (306, 69242), (356, 59517), (389, 54468), (534, 39678), (612, 34621), (778, 27234), (801, 26452), (1068, 19839), (1167, 18156), (1513, 14004), (1556, 13617), (1602, 13226), (2334, 9078), (3026, 7002), (3204, 6613), (3501, 6052), (4539, 4668)]