19996428

素因数分解:

$2^2\times 3^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1553}}^1$

素因数の和:1626

約数の個数: 48

約数和(自身を含む): 49603680

約数和(自身を除く): 29607252

約数列:

[1, 2, 3, 4, 6, 12, 29, 37, 58, 74, 87, 111, 116, 148, 174, 222, 348, 444, 1073, 1553, 2146, 3106, 3219, 4292, 4659, 6212, 6438, 9318, 12876, 18636, 45037, 57461, 90074, 114922, 135111, 172383, 180148, 229844, 270222, 344766, 540444, 689532, 1666369, 3332738, 4999107, 6665476, 9998214, 19996428]

約数ペア:

[(1, 19996428), (2, 9998214), (3, 6665476), (4, 4999107), (6, 3332738), (12, 1666369), (29, 689532), (37, 540444), (58, 344766), (74, 270222), (87, 229844), (111, 180148), (116, 172383), (148, 135111), (174, 114922), (222, 90074), (348, 57461), (444, 45037), (1073, 18636), (1553, 12876), (2146, 9318), (3106, 6438), (3219, 6212), (4292, 4659)]