20189996169

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{347}}^1\times {\mathrm{643}}^1$

素因数の和:1170

約数の個数: 64

約数和(自身を含む): 32128696320

約数和(自身を除く): 11938700151

約数列:

[1, 3, 7, 21, 31, 93, 139, 217, 347, 417, 643, 651, 973, 1041, 1929, 2429, 2919, 4309, 4501, 7287, 10757, 12927, 13503, 19933, 30163, 32271, 48233, 59799, 75299, 89377, 90489, 139531, 144699, 223121, 225897, 268131, 337631, 418593, 625639, 669363, 1012893, 1495223, 1561847, 1876917, 2770687, 4485669, 4685541, 6916751, 8312061, 10466561, 19394809, 20750253, 31013819, 31399683, 48417257, 58184427, 93041457, 145251771, 217096733, 651290199, 961428389, 2884285167, 6729998723, 20189996169]

約数ペア:

[(1, 20189996169), (3, 6729998723), (7, 2884285167), (21, 961428389), (31, 651290199), (93, 217096733), (139, 145251771), (217, 93041457), (347, 58184427), (417, 48417257), (643, 31399683), (651, 31013819), (973, 20750253), (1041, 19394809), (1929, 10466561), (2429, 8312061), (2919, 6916751), (4309, 4685541), (4501, 4485669), (7287, 2770687), (10757, 1876917), (12927, 1561847), (13503, 1495223), (19933, 1012893), (30163, 669363), (32271, 625639), (48233, 418593), (59799, 337631), (75299, 268131), (89377, 225897), (90489, 223121), (139531, 144699)]