1221997842

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{307189}}^1$

素因数の和:307227

約数の個数: 48

約数和(自身を含む): 3019063320

約数和(自身を除く): 1797065478

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 221, 234, 306, 442, 663, 1326, 1989, 3978, 307189, 614378, 921567, 1843134, 2764701, 3993457, 5222213, 5529402, 7986914, 10444426, 11980371, 15666639, 23960742, 31333278, 35941113, 46999917, 67888769, 71882226, 93999834, 135777538, 203666307, 407332614, 610998921, 1221997842]

約数ペア:

[(1, 1221997842), (2, 610998921), (3, 407332614), (6, 203666307), (9, 135777538), (13, 93999834), (17, 71882226), (18, 67888769), (26, 46999917), (34, 35941113), (39, 31333278), (51, 23960742), (78, 15666639), (102, 11980371), (117, 10444426), (153, 7986914), (221, 5529402), (234, 5222213), (306, 3993457), (442, 2764701), (663, 1843134), (1326, 921567), (1989, 614378), (3978, 307189)]