21378414

素因数分解:

$2^1\times 3^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1\times {\mathrm{461}}^1$

素因数の和:656

約数の個数: 32

約数和(自身を含む): 43908480

約数和(自身を除く): 22530066

約数列:

[1, 2, 3, 6, 59, 118, 131, 177, 262, 354, 393, 461, 786, 922, 1383, 2766, 7729, 15458, 23187, 27199, 46374, 54398, 60391, 81597, 120782, 163194, 181173, 362346, 3563069, 7126138, 10689207, 21378414]

約数ペア:

[(1, 21378414), (2, 10689207), (3, 7126138), (6, 3563069), (59, 362346), (118, 181173), (131, 163194), (177, 120782), (262, 81597), (354, 60391), (393, 54398), (461, 46374), (786, 27199), (922, 23187), (1383, 15458), (2766, 7729)]