21301836

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{331}}^1$

素因数の和:542

約数の個数: 48

約数和(自身を含む): 51760128

約数和(自身を除く): 30458292

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 93, 124, 173, 186, 331, 346, 372, 519, 662, 692, 993, 1038, 1324, 1986, 2076, 3972, 5363, 10261, 10726, 16089, 20522, 21452, 30783, 32178, 41044, 57263, 61566, 64356, 114526, 123132, 171789, 229052, 343578, 687156, 1775153, 3550306, 5325459, 7100612, 10650918, 21301836]

約数ペア:

[(1, 21301836), (2, 10650918), (3, 7100612), (4, 5325459), (6, 3550306), (12, 1775153), (31, 687156), (62, 343578), (93, 229052), (124, 171789), (173, 123132), (186, 114526), (331, 64356), (346, 61566), (372, 57263), (519, 41044), (662, 32178), (692, 30783), (993, 21452), (1038, 20522), (1324, 16089), (1986, 10726), (2076, 10261), (3972, 5363)]