131221512

素因数分解:

$2^3\times 3^3\times {\mathrm{31}}^1\times {\mathrm{19597}}^1$

素因数の和:19643

約数の個数: 64

約数和(自身を含む): 376281600

約数和(自身を除く): 245060088

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 31, 36, 54, 62, 72, 93, 108, 124, 186, 216, 248, 279, 372, 558, 744, 837, 1116, 1674, 2232, 3348, 6696, 19597, 39194, 58791, 78388, 117582, 156776, 176373, 235164, 352746, 470328, 529119, 607507, 705492, 1058238, 1215014, 1410984, 1822521, 2116476, 2430028, 3645042, 4232952, 4860056, 5467563, 7290084, 10935126, 14580168, 16402689, 21870252, 32805378, 43740504, 65610756, 131221512]

約数ペア:

[(1, 131221512), (2, 65610756), (3, 43740504), (4, 32805378), (6, 21870252), (8, 16402689), (9, 14580168), (12, 10935126), (18, 7290084), (24, 5467563), (27, 4860056), (31, 4232952), (36, 3645042), (54, 2430028), (62, 2116476), (72, 1822521), (93, 1410984), (108, 1215014), (124, 1058238), (186, 705492), (216, 607507), (248, 529119), (279, 470328), (372, 352746), (558, 235164), (744, 176373), (837, 156776), (1116, 117582), (1674, 78388), (2232, 58791), (3348, 39194), (6696, 19597)]