21756530013

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{937}}^1\times {\mathrm{407357}}^1$

素因数の和:408316

約数の個数: 16

約数和(自身を含む): 30568144320

約数和(自身を除く): 8811614307

約数列:

[1, 3, 19, 57, 937, 2811, 17803, 53409, 407357, 1222071, 7739783, 23219349, 381693509, 1145080527, 7252176671, 21756530013]

約数ペア:

[(1, 21756530013), (3, 7252176671), (19, 1145080527), (57, 381693509), (937, 23219349), (2811, 7739783), (17803, 1222071), (53409, 407357)]