217407904

素因数分解:

$2^5\times 7^2\times {\mathrm{61}}^1\times {\mathrm{2273}}^1$

素因数の和:2358

約数の個数: 72

約数和(自身を含む): 506287908

約数和(自身を除く): 288880004

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 61, 98, 112, 122, 196, 224, 244, 392, 427, 488, 784, 854, 976, 1568, 1708, 1952, 2273, 2989, 3416, 4546, 5978, 6832, 9092, 11956, 13664, 15911, 18184, 23912, 31822, 36368, 47824, 63644, 72736, 95648, 111377, 127288, 138653, 222754, 254576, 277306, 445508, 509152, 554612, 891016, 970571, 1109224, 1782032, 1941142, 2218448, 3564064, 3882284, 4436896, 6793997, 7764568, 13587994, 15529136, 27175988, 31058272, 54351976, 108703952, 217407904]

約数ペア:

[(1, 217407904), (2, 108703952), (4, 54351976), (7, 31058272), (8, 27175988), (14, 15529136), (16, 13587994), (28, 7764568), (32, 6793997), (49, 4436896), (56, 3882284), (61, 3564064), (98, 2218448), (112, 1941142), (122, 1782032), (196, 1109224), (224, 970571), (244, 891016), (392, 554612), (427, 509152), (488, 445508), (784, 277306), (854, 254576), (976, 222754), (1568, 138653), (1708, 127288), (1952, 111377), (2273, 95648), (2989, 72736), (3416, 63644), (4546, 47824), (5978, 36368), (6832, 31822), (9092, 23912), (11956, 18184), (13664, 15911)]