19973538

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5021}}^1$

素因数の和:5059

約数の個数: 48

約数和(自身を含む): 49356216

約数和(自身を除く): 29382678

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, 5021, 10042, 15063, 30126, 45189, 65273, 85357, 90378, 130546, 170714, 195819, 256071, 391638, 512142, 587457, 768213, 1109641, 1174914, 1536426, 2219282, 3328923, 6657846, 9986769, 19973538]

約数ペア:

[(1, 19973538), (2, 9986769), (3, 6657846), (6, 3328923), (9, 2219282), (13, 1536426), (17, 1174914), (18, 1109641), (26, 768213), (34, 587457), (39, 512142), (51, 391638), (78, 256071), (102, 195819), (117, 170714), (153, 130546), (221, 90378), (234, 85357), (306, 65273), (442, 45189), (663, 30126), (1326, 15063), (1989, 10042), (3978, 5021)]