215021954

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1\times {\mathrm{1471}}^1$

素因数の和:1730

約数の個数: 32

約数和(自身を含む): 377726976

約数和(自身を除く): 162705022

約数列:

[1, 2, 7, 14, 53, 106, 197, 371, 394, 742, 1379, 1471, 2758, 2942, 10297, 10441, 20594, 20882, 73087, 77963, 146174, 155926, 289787, 545741, 579574, 1091482, 2028509, 4057018, 15358711, 30717422, 107510977, 215021954]

約数ペア:

[(1, 215021954), (2, 107510977), (7, 30717422), (14, 15358711), (53, 4057018), (106, 2028509), (197, 1091482), (371, 579574), (394, 545741), (742, 289787), (1379, 155926), (1471, 146174), (2758, 77963), (2942, 73087), (10297, 20882), (10441, 20594)]