21325830964

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{409}}^1\times {\mathrm{36109}}^1$

素因数の和:36560

約数の個数: 36

約数和(自身を含む): 39485201700

約数和(自身を除く): 18159370736

約数列:

[1, 2, 4, 19, 38, 76, 361, 409, 722, 818, 1444, 1636, 7771, 15542, 31084, 36109, 72218, 144436, 147649, 295298, 590596, 686071, 1372142, 2744284, 13035349, 14768581, 26070698, 29537162, 52141396, 59074324, 280603039, 561206078, 1122412156, 5331457741, 10662915482, 21325830964]

約数ペア:

[(1, 21325830964), (2, 10662915482), (4, 5331457741), (19, 1122412156), (38, 561206078), (76, 280603039), (361, 59074324), (409, 52141396), (722, 29537162), (818, 26070698), (1444, 14768581), (1636, 13035349), (7771, 2744284), (15542, 1372142), (31084, 686071), (36109, 590596), (72218, 295298), (144436, 147649)]