21413380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1523}}^1$

素因数の和:1588

約数の個数: 48

約数和(自身を含む): 48646080

約数和(自身を除く): 27232700

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 370, 380, 703, 740, 1406, 1523, 2812, 3046, 3515, 6092, 7030, 7615, 14060, 15230, 28937, 30460, 56351, 57874, 112702, 115748, 144685, 225404, 281755, 289370, 563510, 578740, 1070669, 1127020, 2141338, 4282676, 5353345, 10706690, 21413380]

約数ペア:

[(1, 21413380), (2, 10706690), (4, 5353345), (5, 4282676), (10, 2141338), (19, 1127020), (20, 1070669), (37, 578740), (38, 563510), (74, 289370), (76, 281755), (95, 225404), (148, 144685), (185, 115748), (190, 112702), (370, 57874), (380, 56351), (703, 30460), (740, 28937), (1406, 15230), (1523, 14060), (2812, 7615), (3046, 7030), (3515, 6092)]