28541781

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:151

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 19842219

約数列:

[1, 3, 9, 19, 23, 27, 41, 57, 59, 69, 123, 171, 177, 207, 369, 437, 513, 531, 621, 779, 943, 1107, 1121, 1311, 1357, 1593, 2337, 2419, 2829, 3363, 3933, 4071, 7011, 7257, 8487, 10089, 11799, 12213, 17917, 21033, 21771, 25461, 25783, 30267, 36639, 45961, 53751, 55637, 65313, 77349, 137883, 161253, 166911, 232047, 413649, 483759, 500733, 696141, 1057103, 1240947, 1502199, 3171309, 9513927, 28541781]

約数ペア:

[(1, 28541781), (3, 9513927), (9, 3171309), (19, 1502199), (23, 1240947), (27, 1057103), (41, 696141), (57, 500733), (59, 483759), (69, 413649), (123, 232047), (171, 166911), (177, 161253), (207, 137883), (369, 77349), (437, 65313), (513, 55637), (531, 53751), (621, 45961), (779, 36639), (943, 30267), (1107, 25783), (1121, 25461), (1311, 21771), (1357, 21033), (1593, 17917), (2337, 12213), (2419, 11799), (2829, 10089), (3363, 8487), (3933, 7257), (4071, 7011)]