19818843

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{433}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 30831360

約数和(自身を除く): 11012517

約数列:

[1, 3, 11, 19, 33, 57, 73, 209, 219, 433, 627, 803, 1299, 1387, 2409, 4161, 4763, 8227, 14289, 15257, 24681, 31609, 45771, 90497, 94827, 271491, 347699, 600571, 1043097, 1801713, 6606281, 19818843]

約数ペア:

[(1, 19818843), (3, 6606281), (11, 1801713), (19, 1043097), (33, 600571), (57, 347699), (73, 271491), (209, 94827), (219, 90497), (433, 45771), (627, 31609), (803, 24681), (1299, 15257), (1387, 14289), (2409, 8227), (4161, 4763)]