21370630

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{821}}^1$

素因数の和:984

約数の個数: 32

約数和(自身を含む): 40836960

約数和(自身を除く): 19466330

約数列:

[1, 2, 5, 10, 19, 38, 95, 137, 190, 274, 685, 821, 1370, 1642, 2603, 4105, 5206, 8210, 13015, 15599, 26030, 31198, 77995, 112477, 155990, 224954, 562385, 1124770, 2137063, 4274126, 10685315, 21370630]

約数ペア:

[(1, 21370630), (2, 10685315), (5, 4274126), (10, 2137063), (19, 1124770), (38, 562385), (95, 224954), (137, 155990), (190, 112477), (274, 77995), (685, 31198), (821, 26030), (1370, 15599), (1642, 13015), (2603, 8210), (4105, 5206)]