21989230

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{797}}^1$

素因数の和:924

約数の個数: 32

約数和(自身を含む): 41368320

約数和(自身を除く): 19379090

約数列:

[1, 2, 5, 10, 31, 62, 89, 155, 178, 310, 445, 797, 890, 1594, 2759, 3985, 5518, 7970, 13795, 24707, 27590, 49414, 70933, 123535, 141866, 247070, 354665, 709330, 2198923, 4397846, 10994615, 21989230]

約数ペア:

[(1, 21989230), (2, 10994615), (5, 4397846), (10, 2198923), (31, 709330), (62, 354665), (89, 247070), (155, 141866), (178, 123535), (310, 70933), (445, 49414), (797, 27590), (890, 24707), (1594, 13795), (2759, 7970), (3985, 5518)]