21547320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1$

素因数の和:285

約数の個数: 128

約数和(自身を含む): 69603840

約数和(自身を除く): 48056520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 37, 40, 46, 60, 69, 74, 92, 111, 115, 120, 138, 148, 184, 185, 211, 222, 230, 276, 296, 345, 370, 422, 444, 460, 552, 555, 633, 690, 740, 844, 851, 888, 920, 1055, 1110, 1266, 1380, 1480, 1688, 1702, 2110, 2220, 2532, 2553, 2760, 3165, 3404, 4220, 4255, 4440, 4853, 5064, 5106, 6330, 6808, 7807, 8440, 8510, 9706, 10212, 12660, 12765, 14559, 15614, 17020, 19412, 20424, 23421, 24265, 25320, 25530, 29118, 31228, 34040, 38824, 39035, 46842, 48530, 51060, 58236, 62456, 72795, 78070, 93684, 97060, 102120, 116472, 117105, 145590, 156140, 179561, 187368, 194120, 234210, 291180, 312280, 359122, 468420, 538683, 582360, 718244, 897805, 936840, 1077366, 1436488, 1795610, 2154732, 2693415, 3591220, 4309464, 5386830, 7182440, 10773660, 21547320]

約数ペア:

[(1, 21547320), (2, 10773660), (3, 7182440), (4, 5386830), (5, 4309464), (6, 3591220), (8, 2693415), (10, 2154732), (12, 1795610), (15, 1436488), (20, 1077366), (23, 936840), (24, 897805), (30, 718244), (37, 582360), (40, 538683), (46, 468420), (60, 359122), (69, 312280), (74, 291180), (92, 234210), (111, 194120), (115, 187368), (120, 179561), (138, 156140), (148, 145590), (184, 117105), (185, 116472), (211, 102120), (222, 97060), (230, 93684), (276, 78070), (296, 72795), (345, 62456), (370, 58236), (422, 51060), (444, 48530), (460, 46842), (552, 39035), (555, 38824), (633, 34040), (690, 31228), (740, 29118), (844, 25530), (851, 25320), (888, 24265), (920, 23421), (1055, 20424), (1110, 19412), (1266, 17020), (1380, 15614), (1480, 14559), (1688, 12765), (1702, 12660), (2110, 10212), (2220, 9706), (2532, 8510), (2553, 8440), (2760, 7807), (3165, 6808), (3404, 6330), (4220, 5106), (4255, 5064), (4440, 4853)]