19837305

素因数分解:

$3^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{563}}^1$

素因数の和:612

約数の個数: 48

約数和(自身を含む): 36953280

約数和(自身を除く): 17115975

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 81, 87, 135, 145, 243, 261, 405, 435, 563, 783, 1215, 1305, 1689, 2349, 2815, 3915, 5067, 7047, 8445, 11745, 15201, 16327, 25335, 35235, 45603, 48981, 76005, 81635, 136809, 146943, 228015, 244905, 440829, 684045, 734715, 1322487, 2204145, 3967461, 6612435, 19837305]

約数ペア:

[(1, 19837305), (3, 6612435), (5, 3967461), (9, 2204145), (15, 1322487), (27, 734715), (29, 684045), (45, 440829), (81, 244905), (87, 228015), (135, 146943), (145, 136809), (243, 81635), (261, 76005), (405, 48981), (435, 45603), (563, 35235), (783, 25335), (1215, 16327), (1305, 15201), (1689, 11745), (2349, 8445), (2815, 7047), (3915, 5067)]