21987331620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{838571}}^1$

素因数の和:838625

約数の個数: 96

約数和(自身を含む): 67622446080

約数和(自身を除く): 45635114460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 23, 30, 38, 46, 57, 60, 69, 76, 92, 95, 114, 115, 138, 190, 228, 230, 276, 285, 345, 380, 437, 460, 570, 690, 874, 1140, 1311, 1380, 1748, 2185, 2622, 4370, 5244, 6555, 8740, 13110, 26220, 838571, 1677142, 2515713, 3354284, 4192855, 5031426, 8385710, 10062852, 12578565, 15932849, 16771420, 19287133, 25157130, 31865698, 38574266, 47798547, 50314260, 57861399, 63731396, 77148532, 79664245, 95597094, 96435665, 115722798, 159328490, 191194188, 192871330, 231445596, 238992735, 289306995, 318656980, 366455527, 385742660, 477985470, 578613990, 732911054, 955970940, 1099366581, 1157227980, 1465822108, 1832277635, 2198733162, 3664555270, 4397466324, 5496832905, 7329110540, 10993665810, 21987331620]

約数ペア:

[(1, 21987331620), (2, 10993665810), (3, 7329110540), (4, 5496832905), (5, 4397466324), (6, 3664555270), (10, 2198733162), (12, 1832277635), (15, 1465822108), (19, 1157227980), (20, 1099366581), (23, 955970940), (30, 732911054), (38, 578613990), (46, 477985470), (57, 385742660), (60, 366455527), (69, 318656980), (76, 289306995), (92, 238992735), (95, 231445596), (114, 192871330), (115, 191194188), (138, 159328490), (190, 115722798), (228, 96435665), (230, 95597094), (276, 79664245), (285, 77148532), (345, 63731396), (380, 57861399), (437, 50314260), (460, 47798547), (570, 38574266), (690, 31865698), (874, 25157130), (1140, 19287133), (1311, 16771420), (1380, 15932849), (1748, 12578565), (2185, 10062852), (2622, 8385710), (4370, 5031426), (5244, 4192855), (6555, 3354284), (8740, 2515713), (13110, 1677142), (26220, 838571)]