19997298

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^2\times {\mathrm{1321}}^1$

素因数の和:1387

約数の個数: 36

約数和(自身を含む): 44907018

約数和(自身を除く): 24909720

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 87, 174, 261, 522, 841, 1321, 1682, 2523, 2642, 3963, 5046, 7569, 7926, 11889, 15138, 23778, 38309, 76618, 114927, 229854, 344781, 689562, 1110961, 2221922, 3332883, 6665766, 9998649, 19997298]

約数ペア:

[(1, 19997298), (2, 9998649), (3, 6665766), (6, 3332883), (9, 2221922), (18, 1110961), (29, 689562), (58, 344781), (87, 229854), (174, 114927), (261, 76618), (522, 38309), (841, 23778), (1321, 15138), (1682, 11889), (2523, 7926), (2642, 7569), (3963, 5046)]