21000260013

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{27941}}^1$

素因数の和:28189

約数の個数: 32

約数和(自身を含む): 29694522240

約数和(自身を除く): 8694262227

約数列:

[1, 3, 29, 53, 87, 159, 163, 489, 1537, 4611, 4727, 8639, 14181, 25917, 27941, 83823, 250531, 751593, 810289, 1480873, 2430867, 4442619, 4554383, 13663149, 42945317, 128835951, 132077107, 241382299, 396231321, 724146897, 7000086671, 21000260013]

約数ペア:

[(1, 21000260013), (3, 7000086671), (29, 724146897), (53, 396231321), (87, 241382299), (159, 132077107), (163, 128835951), (489, 42945317), (1537, 13663149), (4611, 4554383), (4727, 4442619), (8639, 2430867), (14181, 1480873), (25917, 810289), (27941, 751593), (83823, 250531)]