21227970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4507}}^1$

素因数の和:4674

約数の個数: 32

約数和(自身を含む): 51283008

約数和(自身を除く): 30055038

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 157, 314, 471, 785, 942, 1570, 2355, 4507, 4710, 9014, 13521, 22535, 27042, 45070, 67605, 135210, 707599, 1415198, 2122797, 3537995, 4245594, 7075990, 10613985, 21227970]

約数ペア:

[(1, 21227970), (2, 10613985), (3, 7075990), (5, 4245594), (6, 3537995), (10, 2122797), (15, 1415198), (30, 707599), (157, 135210), (314, 67605), (471, 45070), (785, 27042), (942, 22535), (1570, 13521), (2355, 9014), (4507, 4710)]