19807528

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2609}}^1$

素因数の和:2701

約数の個数: 32

約数和(自身を含む): 40559400

約数和(自身を除く): 20751872

約数列:

[1, 2, 4, 8, 13, 26, 52, 73, 104, 146, 292, 584, 949, 1898, 2609, 3796, 5218, 7592, 10436, 20872, 33917, 67834, 135668, 190457, 271336, 380914, 761828, 1523656, 2475941, 4951882, 9903764, 19807528]

約数ペア:

[(1, 19807528), (2, 9903764), (4, 4951882), (8, 2475941), (13, 1523656), (26, 761828), (52, 380914), (73, 271336), (104, 190457), (146, 135668), (292, 67834), (584, 33917), (949, 20872), (1898, 10436), (2609, 7592), (3796, 5218)]