20210013

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{487}}^1$

素因数の和:578

約数の個数: 32

約数和(自身を含む): 31622400

約数和(自身を除く): 11412387

約数列:

[1, 3, 9, 27, 29, 53, 87, 159, 261, 477, 487, 783, 1431, 1461, 1537, 4383, 4611, 13149, 13833, 14123, 25811, 41499, 42369, 77433, 127107, 232299, 381321, 696897, 748519, 2245557, 6736671, 20210013]

約数ペア:

[(1, 20210013), (3, 6736671), (9, 2245557), (27, 748519), (29, 696897), (53, 381321), (87, 232299), (159, 127107), (261, 77433), (477, 42369), (487, 41499), (783, 25811), (1431, 14123), (1461, 13833), (1537, 13149), (4383, 4611)]