21671007568

素因数分解:

$2^4\times 7^1\times {\mathrm{373}}^1\times {\mathrm{518743}}^1$

素因数の和:519131

約数の個数: 40

約数和(自身を含む): 48114543488

約数和(自身を除く): 26443535920

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 373, 746, 1492, 2611, 2984, 5222, 5968, 10444, 20888, 41776, 518743, 1037486, 2074972, 3631201, 4149944, 7262402, 8299888, 14524804, 29049608, 58099216, 193491139, 386982278, 773964556, 1354437973, 1547929112, 2708875946, 3095858224, 5417751892, 10835503784, 21671007568]

約数ペア:

[(1, 21671007568), (2, 10835503784), (4, 5417751892), (7, 3095858224), (8, 2708875946), (14, 1547929112), (16, 1354437973), (28, 773964556), (56, 386982278), (112, 193491139), (373, 58099216), (746, 29049608), (1492, 14524804), (2611, 8299888), (2984, 7262402), (5222, 4149944), (5968, 3631201), (10444, 2074972), (20888, 1037486), (41776, 518743)]