21751730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:132

約数の個数: 128

約数和(自身を含む): 54867456

約数和(自身を除く): 33115726

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 41, 53, 55, 65, 70, 77, 82, 91, 106, 110, 130, 143, 154, 182, 205, 265, 286, 287, 371, 385, 410, 451, 455, 530, 533, 574, 583, 689, 715, 742, 770, 902, 910, 1001, 1066, 1166, 1378, 1430, 1435, 1855, 2002, 2173, 2255, 2665, 2870, 2915, 3157, 3445, 3710, 3731, 4081, 4346, 4510, 4823, 5005, 5330, 5830, 5863, 6314, 6890, 7462, 7579, 8162, 9646, 10010, 10865, 11726, 15158, 15211, 15785, 18655, 20405, 21730, 23903, 24115, 28249, 29315, 30422, 31570, 37310, 37895, 40810, 41041, 47806, 48230, 53053, 56498, 58630, 75790, 76055, 82082, 106106, 119515, 141245, 152110, 167321, 197743, 205205, 239030, 265265, 282490, 310739, 334642, 395486, 410410, 530530, 621478, 836605, 988715, 1553695, 1673210, 1977430, 2175173, 3107390, 4350346, 10875865, 21751730]

約数ペア:

[(1, 21751730), (2, 10875865), (5, 4350346), (7, 3107390), (10, 2175173), (11, 1977430), (13, 1673210), (14, 1553695), (22, 988715), (26, 836605), (35, 621478), (41, 530530), (53, 410410), (55, 395486), (65, 334642), (70, 310739), (77, 282490), (82, 265265), (91, 239030), (106, 205205), (110, 197743), (130, 167321), (143, 152110), (154, 141245), (182, 119515), (205, 106106), (265, 82082), (286, 76055), (287, 75790), (371, 58630), (385, 56498), (410, 53053), (451, 48230), (455, 47806), (530, 41041), (533, 40810), (574, 37895), (583, 37310), (689, 31570), (715, 30422), (742, 29315), (770, 28249), (902, 24115), (910, 23903), (1001, 21730), (1066, 20405), (1166, 18655), (1378, 15785), (1430, 15211), (1435, 15158), (1855, 11726), (2002, 10865), (2173, 10010), (2255, 9646), (2665, 8162), (2870, 7579), (2915, 7462), (3157, 6890), (3445, 6314), (3710, 5863), (3731, 5830), (4081, 5330), (4346, 5005), (4510, 4823)]