21086970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{239}}^1$

素因数の和:439

約数の個数: 64

約数和(自身を含む): 54120960

約数和(自身を除く): 33033990

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 173, 239, 255, 346, 478, 510, 519, 717, 865, 1038, 1195, 1434, 1730, 2390, 2595, 2941, 3585, 4063, 5190, 5882, 7170, 8126, 8823, 12189, 14705, 17646, 20315, 24378, 29410, 40630, 41347, 44115, 60945, 82694, 88230, 121890, 124041, 206735, 248082, 413470, 620205, 702899, 1240410, 1405798, 2108697, 3514495, 4217394, 7028990, 10543485, 21086970]

約数ペア:

[(1, 21086970), (2, 10543485), (3, 7028990), (5, 4217394), (6, 3514495), (10, 2108697), (15, 1405798), (17, 1240410), (30, 702899), (34, 620205), (51, 413470), (85, 248082), (102, 206735), (170, 124041), (173, 121890), (239, 88230), (255, 82694), (346, 60945), (478, 44115), (510, 41347), (519, 40630), (717, 29410), (865, 24378), (1038, 20315), (1195, 17646), (1434, 14705), (1730, 12189), (2390, 8823), (2595, 8126), (2941, 7170), (3585, 5882), (4063, 5190)]