217857528

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{61751}}^1$

素因数の和:61777

約数の個数: 72

約数和(自身を含む): 686373480

約数和(自身を除く): 468515952

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 63, 72, 84, 98, 126, 147, 168, 196, 252, 294, 392, 441, 504, 588, 882, 1176, 1764, 3528, 61751, 123502, 185253, 247004, 370506, 432257, 494008, 555759, 741012, 864514, 1111518, 1296771, 1482024, 1729028, 2223036, 2593542, 3025799, 3458056, 3890313, 4446072, 5187084, 6051598, 7780626, 9077397, 10374168, 12103196, 15561252, 18154794, 24206392, 27232191, 31122504, 36309588, 54464382, 72619176, 108928764, 217857528]

約数ペア:

[(1, 217857528), (2, 108928764), (3, 72619176), (4, 54464382), (6, 36309588), (7, 31122504), (8, 27232191), (9, 24206392), (12, 18154794), (14, 15561252), (18, 12103196), (21, 10374168), (24, 9077397), (28, 7780626), (36, 6051598), (42, 5187084), (49, 4446072), (56, 3890313), (63, 3458056), (72, 3025799), (84, 2593542), (98, 2223036), (126, 1729028), (147, 1482024), (168, 1296771), (196, 1111518), (252, 864514), (294, 741012), (392, 555759), (441, 494008), (504, 432257), (588, 370506), (882, 247004), (1176, 185253), (1764, 123502), (3528, 61751)]