21036420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6151}}^1$

素因数の和:6185

約数の個数: 72

約数和(自身を含む): 67179840

約数和(自身を除く): 46143420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 6151, 12302, 18453, 24604, 30755, 36906, 55359, 61510, 73812, 92265, 110718, 116869, 123020, 184530, 221436, 233738, 276795, 350607, 369060, 467476, 553590, 584345, 701214, 1051821, 1107180, 1168690, 1402428, 1753035, 2103642, 2337380, 3506070, 4207284, 5259105, 7012140, 10518210, 21036420]

約数ペア:

[(1, 21036420), (2, 10518210), (3, 7012140), (4, 5259105), (5, 4207284), (6, 3506070), (9, 2337380), (10, 2103642), (12, 1753035), (15, 1402428), (18, 1168690), (19, 1107180), (20, 1051821), (30, 701214), (36, 584345), (38, 553590), (45, 467476), (57, 369060), (60, 350607), (76, 276795), (90, 233738), (95, 221436), (114, 184530), (171, 123020), (180, 116869), (190, 110718), (228, 92265), (285, 73812), (342, 61510), (380, 55359), (570, 36906), (684, 30755), (855, 24604), (1140, 18453), (1710, 12302), (3420, 6151)]