21014778727890

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{203821}}^1\times {\mathrm{127289}}^1$

素因数の和:331129

約数の個数: 80

約数和(自身を含む): 56507126183640

約数和(自身を除く): 35492347455750

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 127289, 203821, 254578, 381867, 407642, 611463, 636445, 763734, 1019105, 1145601, 1222926, 1272890, 1834389, 1909335, 2038210, 2291202, 3057315, 3436803, 3668778, 3818670, 5503167, 5728005, 6114630, 6873606, 9171945, 10310409, 11006334, 11456010, 16509501, 17184015, 18343890, 20620818, 27515835, 33019002, 34368030, 51552045, 55031670, 82547505, 103104090, 165095010, 25944171269, 51888342538, 77832513807, 129720856345, 155665027614, 233497541421, 259441712690, 389162569035, 466995082842, 700492624263, 778325138070, 1167487707105, 1400985248526, 2101477872789, 2334975414210, 3502463121315, 4202955745578, 7004926242630, 10507389363945, 21014778727890]

約数ペア:

[(1, 21014778727890), (2, 10507389363945), (3, 7004926242630), (5, 4202955745578), (6, 3502463121315), (9, 2334975414210), (10, 2101477872789), (15, 1400985248526), (18, 1167487707105), (27, 778325138070), (30, 700492624263), (45, 466995082842), (54, 389162569035), (81, 259441712690), (90, 233497541421), (135, 155665027614), (162, 129720856345), (270, 77832513807), (405, 51888342538), (810, 25944171269), (127289, 165095010), (203821, 103104090), (254578, 82547505), (381867, 55031670), (407642, 51552045), (611463, 34368030), (636445, 33019002), (763734, 27515835), (1019105, 20620818), (1145601, 18343890), (1222926, 17184015), (1272890, 16509501), (1834389, 11456010), (1909335, 11006334), (2038210, 10310409), (2291202, 9171945), (3057315, 6873606), (3436803, 6114630), (3668778, 5728005), (3818670, 5503167)]