19738472

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3581}}^1$

素因数の和:3653

約数の個数: 32

約数和(自身を含む): 40619880

約数和(自身を除く): 20881408

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 212, 424, 689, 1378, 2756, 3581, 5512, 7162, 14324, 28648, 46553, 93106, 186212, 189793, 372424, 379586, 759172, 1518344, 2467309, 4934618, 9869236, 19738472]

約数ペア:

[(1, 19738472), (2, 9869236), (4, 4934618), (8, 2467309), (13, 1518344), (26, 759172), (52, 379586), (53, 372424), (104, 189793), (106, 186212), (212, 93106), (424, 46553), (689, 28648), (1378, 14324), (2756, 7162), (3581, 5512)]