21413940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2063}}^1$

素因数の和:2248

約数の個数: 48

約数和(自身を含む): 60334848

約数和(自身を除く): 38920908

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 173, 346, 519, 692, 865, 1038, 1730, 2063, 2076, 2595, 3460, 4126, 5190, 6189, 8252, 10315, 10380, 12378, 20630, 24756, 30945, 41260, 61890, 123780, 356899, 713798, 1070697, 1427596, 1784495, 2141394, 3568990, 4282788, 5353485, 7137980, 10706970, 21413940]

約数ペア:

[(1, 21413940), (2, 10706970), (3, 7137980), (4, 5353485), (5, 4282788), (6, 3568990), (10, 2141394), (12, 1784495), (15, 1427596), (20, 1070697), (30, 713798), (60, 356899), (173, 123780), (346, 61890), (519, 41260), (692, 30945), (865, 24756), (1038, 20630), (1730, 12378), (2063, 10380), (2076, 10315), (2595, 8252), (3460, 6189), (4126, 5190)]