21943260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:204

約数の個数: 144

約数和(自身を含む): 72176832

約数和(自身を除く): 50233572

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 71, 85, 90, 101, 102, 142, 153, 170, 180, 202, 204, 213, 255, 284, 303, 306, 340, 355, 404, 426, 505, 510, 606, 612, 639, 710, 765, 852, 909, 1010, 1020, 1065, 1207, 1212, 1278, 1420, 1515, 1530, 1717, 1818, 2020, 2130, 2414, 2556, 3030, 3060, 3195, 3434, 3621, 3636, 4260, 4545, 4828, 5151, 6035, 6060, 6390, 6868, 7171, 7242, 8585, 9090, 10302, 10863, 12070, 12780, 14342, 14484, 15453, 17170, 18105, 18180, 20604, 21513, 21726, 24140, 25755, 28684, 30906, 34340, 35855, 36210, 43026, 43452, 51510, 54315, 61812, 64539, 71710, 72420, 77265, 86052, 103020, 107565, 108630, 121907, 129078, 143420, 154530, 215130, 217260, 243814, 258156, 309060, 322695, 365721, 430260, 487628, 609535, 645390, 731442, 1097163, 1219070, 1290780, 1462884, 1828605, 2194326, 2438140, 3657210, 4388652, 5485815, 7314420, 10971630, 21943260]

約数ペア:

[(1, 21943260), (2, 10971630), (3, 7314420), (4, 5485815), (5, 4388652), (6, 3657210), (9, 2438140), (10, 2194326), (12, 1828605), (15, 1462884), (17, 1290780), (18, 1219070), (20, 1097163), (30, 731442), (34, 645390), (36, 609535), (45, 487628), (51, 430260), (60, 365721), (68, 322695), (71, 309060), (85, 258156), (90, 243814), (101, 217260), (102, 215130), (142, 154530), (153, 143420), (170, 129078), (180, 121907), (202, 108630), (204, 107565), (213, 103020), (255, 86052), (284, 77265), (303, 72420), (306, 71710), (340, 64539), (355, 61812), (404, 54315), (426, 51510), (505, 43452), (510, 43026), (606, 36210), (612, 35855), (639, 34340), (710, 30906), (765, 28684), (852, 25755), (909, 24140), (1010, 21726), (1020, 21513), (1065, 20604), (1207, 18180), (1212, 18105), (1278, 17170), (1420, 15453), (1515, 14484), (1530, 14342), (1717, 12780), (1818, 12070), (2020, 10863), (2130, 10302), (2414, 9090), (2556, 8585), (3030, 7242), (3060, 7171), (3195, 6868), (3434, 6390), (3621, 6060), (3636, 6035), (4260, 5151), (4545, 4828)]