21296450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{857}}^1$

素因数の和:947

約数の個数: 48

約数和(自身を含む): 45961344

約数和(自身を除く): 24664894

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 71, 142, 175, 350, 355, 497, 710, 857, 994, 1714, 1775, 2485, 3550, 4285, 4970, 5999, 8570, 11998, 12425, 21425, 24850, 29995, 42850, 59990, 60847, 121694, 149975, 299950, 304235, 425929, 608470, 851858, 1521175, 2129645, 3042350, 4259290, 10648225, 21296450]

約数ペア:

[(1, 21296450), (2, 10648225), (5, 4259290), (7, 3042350), (10, 2129645), (14, 1521175), (25, 851858), (35, 608470), (50, 425929), (70, 304235), (71, 299950), (142, 149975), (175, 121694), (350, 60847), (355, 59990), (497, 42850), (710, 29995), (857, 24850), (994, 21425), (1714, 12425), (1775, 11998), (2485, 8570), (3550, 5999), (4285, 4970)]