21490280470

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{911}}^1\times {\mathrm{947}}^1$

素因数の和:1965

約数の個数: 64

約数和(自身を含む): 40337657856

約数和(自身を除く): 18847377386

約数列:

[1, 2, 5, 10, 47, 53, 94, 106, 235, 265, 470, 530, 911, 947, 1822, 1894, 2491, 4555, 4735, 4982, 9110, 9470, 12455, 24910, 42817, 44509, 48283, 50191, 85634, 89018, 96566, 100382, 214085, 222545, 241415, 250955, 428170, 445090, 482830, 501910, 862717, 1725434, 2269301, 2358977, 4313585, 4538602, 4717954, 8627170, 11346505, 11794885, 22693010, 23589770, 40547699, 45724001, 81095398, 91448002, 202738495, 228620005, 405476990, 457240010, 2149028047, 4298056094, 10745140235, 21490280470]

約数ペア:

[(1, 21490280470), (2, 10745140235), (5, 4298056094), (10, 2149028047), (47, 457240010), (53, 405476990), (94, 228620005), (106, 202738495), (235, 91448002), (265, 81095398), (470, 45724001), (530, 40547699), (911, 23589770), (947, 22693010), (1822, 11794885), (1894, 11346505), (2491, 8627170), (4555, 4717954), (4735, 4538602), (4982, 4313585), (9110, 2358977), (9470, 2269301), (12455, 1725434), (24910, 862717), (42817, 501910), (44509, 482830), (48283, 445090), (50191, 428170), (85634, 250955), (89018, 241415), (96566, 222545), (100382, 214085)]