21849540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:329

約数の個数: 96

約数和(自身を含む): 65028096

約数和(自身を除く): 43178556

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 71, 92, 115, 138, 142, 213, 223, 230, 276, 284, 345, 355, 426, 446, 460, 669, 690, 710, 852, 892, 1065, 1115, 1338, 1380, 1420, 1633, 2130, 2230, 2676, 3266, 3345, 4260, 4460, 4899, 5129, 6532, 6690, 8165, 9798, 10258, 13380, 15387, 15833, 16330, 19596, 20516, 24495, 25645, 30774, 31666, 32660, 47499, 48990, 51290, 61548, 63332, 76935, 79165, 94998, 97980, 102580, 153870, 158330, 189996, 237495, 307740, 316660, 364159, 474990, 728318, 949980, 1092477, 1456636, 1820795, 2184954, 3641590, 4369908, 5462385, 7283180, 10924770, 21849540]

約数ペア:

[(1, 21849540), (2, 10924770), (3, 7283180), (4, 5462385), (5, 4369908), (6, 3641590), (10, 2184954), (12, 1820795), (15, 1456636), (20, 1092477), (23, 949980), (30, 728318), (46, 474990), (60, 364159), (69, 316660), (71, 307740), (92, 237495), (115, 189996), (138, 158330), (142, 153870), (213, 102580), (223, 97980), (230, 94998), (276, 79165), (284, 76935), (345, 63332), (355, 61548), (426, 51290), (446, 48990), (460, 47499), (669, 32660), (690, 31666), (710, 30774), (852, 25645), (892, 24495), (1065, 20516), (1115, 19596), (1338, 16330), (1380, 15833), (1420, 15387), (1633, 13380), (2130, 10258), (2230, 9798), (2676, 8165), (3266, 6690), (3345, 6532), (4260, 5129), (4460, 4899)]