21621852

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{359}}^1$

素因数の和:615

約数の個数: 72

約数和(自身を含む): 62899200

約数和(自身を除く): 41277348

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 239, 252, 359, 478, 717, 718, 956, 1077, 1434, 1436, 1673, 2151, 2154, 2513, 2868, 3231, 3346, 4302, 4308, 5019, 5026, 6462, 6692, 7539, 8604, 10038, 10052, 12924, 15057, 15078, 20076, 22617, 30114, 30156, 45234, 60228, 85801, 90468, 171602, 257403, 343204, 514806, 600607, 772209, 1029612, 1201214, 1544418, 1801821, 2402428, 3088836, 3603642, 5405463, 7207284, 10810926, 21621852]

約数ペア:

[(1, 21621852), (2, 10810926), (3, 7207284), (4, 5405463), (6, 3603642), (7, 3088836), (9, 2402428), (12, 1801821), (14, 1544418), (18, 1201214), (21, 1029612), (28, 772209), (36, 600607), (42, 514806), (63, 343204), (84, 257403), (126, 171602), (239, 90468), (252, 85801), (359, 60228), (478, 45234), (717, 30156), (718, 30114), (956, 22617), (1077, 20076), (1434, 15078), (1436, 15057), (1673, 12924), (2151, 10052), (2154, 10038), (2513, 8604), (2868, 7539), (3231, 6692), (3346, 6462), (4302, 5026), (4308, 5019)]