21981108

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1597}}^1$

素因数の和:1672

約数の個数: 48

約数和(自身を含む): 54408704

約数和(自身を除く): 32427596

約数列:

[1, 2, 3, 4, 6, 12, 31, 37, 62, 74, 93, 111, 124, 148, 186, 222, 372, 444, 1147, 1597, 2294, 3194, 3441, 4588, 4791, 6388, 6882, 9582, 13764, 19164, 49507, 59089, 99014, 118178, 148521, 177267, 198028, 236356, 297042, 354534, 594084, 709068, 1831759, 3663518, 5495277, 7327036, 10990554, 21981108]

約数ペア:

[(1, 21981108), (2, 10990554), (3, 7327036), (4, 5495277), (6, 3663518), (12, 1831759), (31, 709068), (37, 594084), (62, 354534), (74, 297042), (93, 236356), (111, 198028), (124, 177267), (148, 148521), (186, 118178), (222, 99014), (372, 59089), (444, 49507), (1147, 19164), (1597, 13764), (2294, 9582), (3194, 6882), (3441, 6388), (4588, 4791)]