21427250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{347}}^1$

素因数の和:396

約数の個数: 64

約数和(自身を含む): 45601920

約数和(自身を除く): 24174670

約数列:

[1, 2, 5, 10, 13, 19, 25, 26, 38, 50, 65, 95, 125, 130, 190, 247, 250, 325, 347, 475, 494, 650, 694, 950, 1235, 1625, 1735, 2375, 2470, 3250, 3470, 4511, 4750, 6175, 6593, 8675, 9022, 12350, 13186, 17350, 22555, 30875, 32965, 43375, 45110, 61750, 65930, 85709, 86750, 112775, 164825, 171418, 225550, 329650, 428545, 563875, 824125, 857090, 1127750, 1648250, 2142725, 4285450, 10713625, 21427250]

約数ペア:

[(1, 21427250), (2, 10713625), (5, 4285450), (10, 2142725), (13, 1648250), (19, 1127750), (25, 857090), (26, 824125), (38, 563875), (50, 428545), (65, 329650), (95, 225550), (125, 171418), (130, 164825), (190, 112775), (247, 86750), (250, 85709), (325, 65930), (347, 61750), (475, 45110), (494, 43375), (650, 32965), (694, 30875), (950, 22555), (1235, 17350), (1625, 13186), (1735, 12350), (2375, 9022), (2470, 8675), (3250, 6593), (3470, 6175), (4511, 4750)]