217871836

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2311}}^1$

素因数の和:2379

約数の個数: 72

約数和(自身を含む): 490763616

約数和(自身を除く): 272891780

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 37, 49, 52, 74, 91, 98, 148, 182, 196, 259, 364, 481, 518, 637, 962, 1036, 1274, 1813, 1924, 2311, 2548, 3367, 3626, 4622, 6734, 7252, 9244, 13468, 16177, 23569, 30043, 32354, 47138, 60086, 64708, 85507, 94276, 113239, 120172, 171014, 210301, 226478, 342028, 420602, 452956, 598549, 841204, 1111591, 1197098, 1472107, 2223182, 2394196, 2944214, 4189843, 4446364, 5888428, 7781137, 8379686, 15562274, 16759372, 31124548, 54467959, 108935918, 217871836]

約数ペア:

[(1, 217871836), (2, 108935918), (4, 54467959), (7, 31124548), (13, 16759372), (14, 15562274), (26, 8379686), (28, 7781137), (37, 5888428), (49, 4446364), (52, 4189843), (74, 2944214), (91, 2394196), (98, 2223182), (148, 1472107), (182, 1197098), (196, 1111591), (259, 841204), (364, 598549), (481, 452956), (518, 420602), (637, 342028), (962, 226478), (1036, 210301), (1274, 171014), (1813, 120172), (1924, 113239), (2311, 94276), (2548, 85507), (3367, 64708), (3626, 60086), (4622, 47138), (6734, 32354), (7252, 30043), (9244, 23569), (13468, 16177)]