19910928

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^1\times {\mathrm{13381}}^1$

素因数の和:13423

約数の個数: 40

約数和(自身を含む): 53099776

約数和(自身を除く): 33188848

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 48, 62, 93, 124, 186, 248, 372, 496, 744, 1488, 13381, 26762, 40143, 53524, 80286, 107048, 160572, 214096, 321144, 414811, 642288, 829622, 1244433, 1659244, 2488866, 3318488, 4977732, 6636976, 9955464, 19910928]

約数ペア:

[(1, 19910928), (2, 9955464), (3, 6636976), (4, 4977732), (6, 3318488), (8, 2488866), (12, 1659244), (16, 1244433), (24, 829622), (31, 642288), (48, 414811), (62, 321144), (93, 214096), (124, 160572), (186, 107048), (248, 80286), (372, 53524), (496, 40143), (744, 26762), (1488, 13381)]