19689774

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{479}}^1$

素因数の和:545

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 26758866

約数列:

[1, 2, 3, 6, 13, 17, 26, 31, 34, 39, 51, 62, 78, 93, 102, 186, 221, 403, 442, 479, 527, 663, 806, 958, 1054, 1209, 1326, 1437, 1581, 2418, 2874, 3162, 6227, 6851, 8143, 12454, 13702, 14849, 16286, 18681, 20553, 24429, 29698, 37362, 41106, 44547, 48858, 89094, 105859, 193037, 211718, 252433, 317577, 386074, 504866, 579111, 635154, 757299, 1158222, 1514598, 3281629, 6563258, 9844887, 19689774]

約数ペア:

[(1, 19689774), (2, 9844887), (3, 6563258), (6, 3281629), (13, 1514598), (17, 1158222), (26, 757299), (31, 635154), (34, 579111), (39, 504866), (51, 386074), (62, 317577), (78, 252433), (93, 211718), (102, 193037), (186, 105859), (221, 89094), (403, 48858), (442, 44547), (479, 41106), (527, 37362), (663, 29698), (806, 24429), (958, 20553), (1054, 18681), (1209, 16286), (1326, 14849), (1437, 13702), (1581, 12454), (2418, 8143), (2874, 6851), (3162, 6227)]