40990313

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{281}}^1$

素因数の和:537

約数の個数: 24

約数和(自身を含む): 51758280

約数和(自身を除く): 10767967

約数列:

[1, 7, 13, 49, 91, 229, 281, 637, 1603, 1967, 2977, 3653, 11221, 13769, 20839, 25571, 64349, 145873, 178997, 450443, 836537, 3153101, 5855759, 40990313]

約数ペア:

[(1, 40990313), (7, 5855759), (13, 3153101), (49, 836537), (91, 450443), (229, 178997), (281, 145873), (637, 64349), (1603, 25571), (1967, 20839), (2977, 13769), (3653, 11221)]