19570876

素因数分解:

$2^2\times {\mathrm{13}}^3\times {\mathrm{17}}^1\times {\mathrm{131}}^1$

素因数の和:191

約数の個数: 48

約数和(自身を含む): 39584160

約数和(自身を除く): 20013284

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 131, 169, 221, 262, 338, 442, 524, 676, 884, 1703, 2197, 2227, 2873, 3406, 4394, 4454, 5746, 6812, 8788, 8908, 11492, 22139, 28951, 37349, 44278, 57902, 74698, 88556, 115804, 149396, 287807, 376363, 575614, 752726, 1151228, 1505452, 4892719, 9785438, 19570876]

約数ペア:

[(1, 19570876), (2, 9785438), (4, 4892719), (13, 1505452), (17, 1151228), (26, 752726), (34, 575614), (52, 376363), (68, 287807), (131, 149396), (169, 115804), (221, 88556), (262, 74698), (338, 57902), (442, 44278), (524, 37349), (676, 28951), (884, 22139), (1703, 11492), (2197, 8908), (2227, 8788), (2873, 6812), (3406, 5746), (4394, 4454)]