19489487759

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1\times {\mathrm{271}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 24290426880

約数和(自身を除く): 4800939121

約数列:

[1, 7, 23, 59, 67, 113, 161, 271, 413, 469, 791, 1357, 1541, 1897, 2599, 3953, 6233, 6667, 7571, 9499, 10787, 15989, 18157, 18193, 27671, 30623, 43631, 46669, 52997, 90919, 111923, 127099, 153341, 174133, 214361, 367747, 417611, 446689, 636433, 704329, 1071263, 1073387, 1218931, 1806757, 2051741, 2574229, 2923277, 3126823, 4930303, 7498841, 10273847, 12647299, 14362187, 24639049, 41555411, 47190043, 71916929, 121052719, 172473343, 290887877, 330330301, 847369033, 2784212537, 19489487759]

約数ペア:

[(1, 19489487759), (7, 2784212537), (23, 847369033), (59, 330330301), (67, 290887877), (113, 172473343), (161, 121052719), (271, 71916929), (413, 47190043), (469, 41555411), (791, 24639049), (1357, 14362187), (1541, 12647299), (1897, 10273847), (2599, 7498841), (3953, 4930303), (6233, 3126823), (6667, 2923277), (7571, 2574229), (9499, 2051741), (10787, 1806757), (15989, 1218931), (18157, 1073387), (18193, 1071263), (27671, 704329), (30623, 636433), (43631, 446689), (46669, 417611), (52997, 367747), (90919, 214361), (111923, 174133), (127099, 153341)]