21004470

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{557}}^1$

素因数の和:989

約数の個数: 48

約数和(自身を含む): 54840240

約数和(自身を除く): 33835770

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 419, 557, 838, 1114, 1257, 1671, 2095, 2514, 2785, 3342, 3771, 4190, 5013, 5570, 6285, 7542, 8355, 10026, 12570, 16710, 18855, 25065, 37710, 50130, 233383, 466766, 700149, 1166915, 1400298, 2100447, 2333830, 3500745, 4200894, 7001490, 10502235, 21004470]

約数ペア:

[(1, 21004470), (2, 10502235), (3, 7001490), (5, 4200894), (6, 3500745), (9, 2333830), (10, 2100447), (15, 1400298), (18, 1166915), (30, 700149), (45, 466766), (90, 233383), (419, 50130), (557, 37710), (838, 25065), (1114, 18855), (1257, 16710), (1671, 12570), (2095, 10026), (2514, 8355), (2785, 7542), (3342, 6285), (3771, 5570), (4190, 5013)]