21870030

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8011}}^1$

素因数の和:8041

約数の個数: 64

約数和(自身を含む): 64608768

約数和(自身を除く): 42738738

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 182, 195, 210, 273, 390, 455, 546, 910, 1365, 2730, 8011, 16022, 24033, 40055, 48066, 56077, 80110, 104143, 112154, 120165, 168231, 208286, 240330, 280385, 312429, 336462, 520715, 560770, 624858, 729001, 841155, 1041430, 1458002, 1562145, 1682310, 2187003, 3124290, 3645005, 4374006, 7290010, 10935015, 21870030]

約数ペア:

[(1, 21870030), (2, 10935015), (3, 7290010), (5, 4374006), (6, 3645005), (7, 3124290), (10, 2187003), (13, 1682310), (14, 1562145), (15, 1458002), (21, 1041430), (26, 841155), (30, 729001), (35, 624858), (39, 560770), (42, 520715), (65, 336462), (70, 312429), (78, 280385), (91, 240330), (105, 208286), (130, 168231), (182, 120165), (195, 112154), (210, 104143), (273, 80110), (390, 56077), (455, 48066), (546, 40055), (910, 24033), (1365, 16022), (2730, 8011)]