21099260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{11593}}^1$

素因数の和:11622

約数の個数: 48

約数和(自身を含む): 54538176

約数和(自身を除く): 33438916

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 11593, 23186, 46372, 57965, 81151, 115930, 150709, 162302, 231860, 301418, 324604, 405755, 602836, 753545, 811510, 1054963, 1507090, 1623020, 2109926, 3014180, 4219852, 5274815, 10549630, 21099260]

約数ペア:

[(1, 21099260), (2, 10549630), (4, 5274815), (5, 4219852), (7, 3014180), (10, 2109926), (13, 1623020), (14, 1507090), (20, 1054963), (26, 811510), (28, 753545), (35, 602836), (52, 405755), (65, 324604), (70, 301418), (91, 231860), (130, 162302), (140, 150709), (182, 115930), (260, 81151), (364, 57965), (455, 46372), (910, 23186), (1820, 11593)]