18939258

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2$

素因数の和:90

約数の個数: 120

約数和(自身を含む): 50586228

約数和(自身を除く): 31646970

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 23, 26, 27, 34, 39, 46, 51, 54, 69, 78, 81, 102, 117, 138, 153, 162, 207, 221, 234, 299, 306, 351, 391, 414, 442, 459, 529, 598, 621, 663, 702, 782, 897, 918, 1053, 1058, 1173, 1242, 1326, 1377, 1587, 1794, 1863, 1989, 2106, 2346, 2691, 2754, 3174, 3519, 3726, 3978, 4761, 5083, 5382, 5967, 6877, 7038, 8073, 8993, 9522, 10166, 10557, 11934, 13754, 14283, 15249, 16146, 17901, 17986, 20631, 21114, 24219, 26979, 28566, 30498, 31671, 35802, 41262, 42849, 45747, 48438, 53958, 61893, 63342, 80937, 85698, 91494, 116909, 123786, 137241, 161874, 185679, 233818, 242811, 274482, 350727, 371358, 411723, 485622, 557037, 701454, 728433, 823446, 1052181, 1114074, 1456866, 2104362, 3156543, 6313086, 9469629, 18939258]

約数ペア:

[(1, 18939258), (2, 9469629), (3, 6313086), (6, 3156543), (9, 2104362), (13, 1456866), (17, 1114074), (18, 1052181), (23, 823446), (26, 728433), (27, 701454), (34, 557037), (39, 485622), (46, 411723), (51, 371358), (54, 350727), (69, 274482), (78, 242811), (81, 233818), (102, 185679), (117, 161874), (138, 137241), (153, 123786), (162, 116909), (207, 91494), (221, 85698), (234, 80937), (299, 63342), (306, 61893), (351, 53958), (391, 48438), (414, 45747), (442, 42849), (459, 41262), (529, 35802), (598, 31671), (621, 30498), (663, 28566), (702, 26979), (782, 24219), (897, 21114), (918, 20631), (1053, 17986), (1058, 17901), (1173, 16146), (1242, 15249), (1326, 14283), (1377, 13754), (1587, 11934), (1794, 10557), (1863, 10166), (1989, 9522), (2106, 8993), (2346, 8073), (2691, 7038), (2754, 6877), (3174, 5967), (3519, 5382), (3726, 5083), (3978, 4761)]