19637775

素因数分解:

$3^3\times 5^2\times {\mathrm{47}}^1\times {\mathrm{619}}^1$

素因数の和:685

約数の個数: 48

約数和(自身を含む): 36902400

約数和(自身を除く): 17264625

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 47, 75, 135, 141, 225, 235, 423, 619, 675, 705, 1175, 1269, 1857, 2115, 3095, 3525, 5571, 6345, 9285, 10575, 15475, 16713, 27855, 29093, 31725, 46425, 83565, 87279, 139275, 145465, 261837, 417825, 436395, 727325, 785511, 1309185, 2181975, 3927555, 6545925, 19637775]

約数ペア:

[(1, 19637775), (3, 6545925), (5, 3927555), (9, 2181975), (15, 1309185), (25, 785511), (27, 727325), (45, 436395), (47, 417825), (75, 261837), (135, 145465), (141, 139275), (225, 87279), (235, 83565), (423, 46425), (619, 31725), (675, 29093), (705, 27855), (1175, 16713), (1269, 15475), (1857, 10575), (2115, 9285), (3095, 6345), (3525, 5571)]