21194178

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{1409}}^1$

素因数の和:1546

約数の個数: 32

約数和(自身を含む): 44668800

約数和(自身を除く): 23474622

約数列:

[1, 2, 3, 6, 23, 46, 69, 109, 138, 218, 327, 654, 1409, 2507, 2818, 4227, 5014, 7521, 8454, 15042, 32407, 64814, 97221, 153581, 194442, 307162, 460743, 921486, 3532363, 7064726, 10597089, 21194178]

約数ペア:

[(1, 21194178), (2, 10597089), (3, 7064726), (6, 3532363), (23, 921486), (46, 460743), (69, 307162), (109, 194442), (138, 153581), (218, 97221), (327, 64814), (654, 32407), (1409, 15042), (2507, 8454), (2818, 7521), (4227, 5014)]