21087442107

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{2161}}^1$

素因数の和:2313

約数の個数: 96

約数和(自身を含む): 34968360960

約数和(自身を除く): 13880918853

約数列:

[1, 3, 9, 17, 23, 47, 51, 59, 69, 141, 153, 177, 207, 391, 423, 531, 799, 1003, 1081, 1173, 1357, 2161, 2397, 2773, 3009, 3243, 3519, 4071, 6483, 7191, 8319, 9027, 9729, 12213, 18377, 19449, 23069, 24957, 36737, 47141, 49703, 55131, 63779, 69207, 101567, 110211, 127499, 141423, 149109, 165393, 191337, 207621, 304701, 330633, 382497, 424269, 447327, 574011, 844951, 914103, 1084243, 1147491, 1726639, 2167483, 2336041, 2534853, 2932477, 3252729, 5179917, 5992453, 6502449, 7008123, 7604559, 8797431, 9758187, 15539751, 17977359, 19507347, 21024369, 26392293, 39712697, 49852109, 53932077, 101871701, 119138091, 137826419, 149556327, 305615103, 357414273, 413479257, 448668981, 916845309, 1240437771, 2343049123, 7029147369, 21087442107]

約数ペア:

[(1, 21087442107), (3, 7029147369), (9, 2343049123), (17, 1240437771), (23, 916845309), (47, 448668981), (51, 413479257), (59, 357414273), (69, 305615103), (141, 149556327), (153, 137826419), (177, 119138091), (207, 101871701), (391, 53932077), (423, 49852109), (531, 39712697), (799, 26392293), (1003, 21024369), (1081, 19507347), (1173, 17977359), (1357, 15539751), (2161, 9758187), (2397, 8797431), (2773, 7604559), (3009, 7008123), (3243, 6502449), (3519, 5992453), (4071, 5179917), (6483, 3252729), (7191, 2932477), (8319, 2534853), (9027, 2336041), (9729, 2167483), (12213, 1726639), (18377, 1147491), (19449, 1084243), (23069, 914103), (24957, 844951), (36737, 574011), (47141, 447327), (49703, 424269), (55131, 382497), (63779, 330633), (69207, 304701), (101567, 207621), (110211, 191337), (127499, 165393), (141423, 149109)]