21274260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^3$

素因数の和:130

約数の個数: 96

約数和(自身を含む): 69968640

約数和(自身を除く): 48694380

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 37, 42, 60, 70, 74, 84, 105, 111, 140, 148, 185, 210, 222, 259, 370, 420, 444, 518, 555, 740, 777, 1036, 1110, 1295, 1369, 1554, 2220, 2590, 2738, 3108, 3885, 4107, 5180, 5476, 6845, 7770, 8214, 9583, 13690, 15540, 16428, 19166, 20535, 27380, 28749, 38332, 41070, 47915, 50653, 57498, 82140, 95830, 101306, 114996, 143745, 151959, 191660, 202612, 253265, 287490, 303918, 354571, 506530, 574980, 607836, 709142, 759795, 1013060, 1063713, 1418284, 1519590, 1772855, 2127426, 3039180, 3545710, 4254852, 5318565, 7091420, 10637130, 21274260]

約数ペア:

[(1, 21274260), (2, 10637130), (3, 7091420), (4, 5318565), (5, 4254852), (6, 3545710), (7, 3039180), (10, 2127426), (12, 1772855), (14, 1519590), (15, 1418284), (20, 1063713), (21, 1013060), (28, 759795), (30, 709142), (35, 607836), (37, 574980), (42, 506530), (60, 354571), (70, 303918), (74, 287490), (84, 253265), (105, 202612), (111, 191660), (140, 151959), (148, 143745), (185, 114996), (210, 101306), (222, 95830), (259, 82140), (370, 57498), (420, 50653), (444, 47915), (518, 41070), (555, 38332), (740, 28749), (777, 27380), (1036, 20535), (1110, 19166), (1295, 16428), (1369, 15540), (1554, 13690), (2220, 9583), (2590, 8214), (2738, 7770), (3108, 6845), (3885, 5476), (4107, 5180)]