21093540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27043}}^1$

素因数の和:27068

約数の個数: 48

約数和(自身を含む): 63607488

約数和(自身を除く): 42513948

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 27043, 54086, 81129, 108172, 135215, 162258, 270430, 324516, 351559, 405645, 540860, 703118, 811290, 1054677, 1406236, 1622580, 1757795, 2109354, 3515590, 4218708, 5273385, 7031180, 10546770, 21093540]

約数ペア:

[(1, 21093540), (2, 10546770), (3, 7031180), (4, 5273385), (5, 4218708), (6, 3515590), (10, 2109354), (12, 1757795), (13, 1622580), (15, 1406236), (20, 1054677), (26, 811290), (30, 703118), (39, 540860), (52, 405645), (60, 351559), (65, 324516), (78, 270430), (130, 162258), (156, 135215), (195, 108172), (260, 81129), (390, 54086), (780, 27043)]