21539130

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{283}}^1$

素因数の和:395

約数の個数: 64

約数和(自身を含む): 53982720

約数和(自身を除く): 32443590

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 59, 86, 118, 129, 177, 215, 258, 283, 295, 354, 430, 566, 590, 645, 849, 885, 1290, 1415, 1698, 1770, 2537, 2830, 4245, 5074, 7611, 8490, 12169, 12685, 15222, 16697, 24338, 25370, 33394, 36507, 38055, 50091, 60845, 73014, 76110, 83485, 100182, 121690, 166970, 182535, 250455, 365070, 500910, 717971, 1435942, 2153913, 3589855, 4307826, 7179710, 10769565, 21539130]

約数ペア:

[(1, 21539130), (2, 10769565), (3, 7179710), (5, 4307826), (6, 3589855), (10, 2153913), (15, 1435942), (30, 717971), (43, 500910), (59, 365070), (86, 250455), (118, 182535), (129, 166970), (177, 121690), (215, 100182), (258, 83485), (283, 76110), (295, 73014), (354, 60845), (430, 50091), (566, 38055), (590, 36507), (645, 33394), (849, 25370), (885, 24338), (1290, 16697), (1415, 15222), (1698, 12685), (1770, 12169), (2537, 8490), (2830, 7611), (4245, 5074)]