21485178

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1$

素因数の和:540

約数の個数: 96

約数和(自身を含む): 58024512

約数和(自身を除く): 36539334

約数列:

[1, 2, 3, 6, 9, 11, 13, 17, 18, 22, 26, 33, 34, 39, 51, 66, 78, 99, 102, 117, 143, 153, 187, 198, 221, 234, 286, 306, 374, 429, 442, 491, 561, 663, 858, 982, 1122, 1287, 1326, 1473, 1683, 1989, 2431, 2574, 2946, 3366, 3978, 4419, 4862, 5401, 6383, 7293, 8347, 8838, 10802, 12766, 14586, 16203, 16694, 19149, 21879, 25041, 32406, 38298, 43758, 48609, 50082, 57447, 70213, 75123, 91817, 97218, 108511, 114894, 140426, 150246, 183634, 210639, 217022, 275451, 325533, 421278, 550902, 631917, 651066, 826353, 976599, 1193621, 1263834, 1652706, 1953198, 2387242, 3580863, 7161726, 10742589, 21485178]

約数ペア:

[(1, 21485178), (2, 10742589), (3, 7161726), (6, 3580863), (9, 2387242), (11, 1953198), (13, 1652706), (17, 1263834), (18, 1193621), (22, 976599), (26, 826353), (33, 651066), (34, 631917), (39, 550902), (51, 421278), (66, 325533), (78, 275451), (99, 217022), (102, 210639), (117, 183634), (143, 150246), (153, 140426), (187, 114894), (198, 108511), (221, 97218), (234, 91817), (286, 75123), (306, 70213), (374, 57447), (429, 50082), (442, 48609), (491, 43758), (561, 38298), (663, 32406), (858, 25041), (982, 21879), (1122, 19149), (1287, 16694), (1326, 16203), (1473, 14586), (1683, 12766), (1989, 10802), (2431, 8838), (2574, 8347), (2946, 7293), (3366, 6383), (3978, 5401), (4419, 4862)]