20857668

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1$

素因数の和:297

約数の個数: 96

約数和(自身を含む): 57200640

約数和(自身を除く): 36342972

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 31, 38, 39, 52, 57, 62, 76, 78, 93, 114, 124, 156, 186, 227, 228, 247, 372, 403, 454, 494, 589, 681, 741, 806, 908, 988, 1178, 1209, 1362, 1482, 1612, 1767, 2356, 2418, 2724, 2951, 2964, 3534, 4313, 4836, 5902, 7037, 7068, 7657, 8626, 8853, 11804, 12939, 14074, 15314, 17252, 17706, 21111, 22971, 25878, 28148, 30628, 35412, 42222, 45942, 51756, 56069, 84444, 91481, 91884, 112138, 133703, 168207, 182962, 224276, 267406, 274443, 336414, 365924, 401109, 534812, 548886, 672828, 802218, 1097772, 1604436, 1738139, 3476278, 5214417, 6952556, 10428834, 20857668]

約数ペア:

[(1, 20857668), (2, 10428834), (3, 6952556), (4, 5214417), (6, 3476278), (12, 1738139), (13, 1604436), (19, 1097772), (26, 802218), (31, 672828), (38, 548886), (39, 534812), (52, 401109), (57, 365924), (62, 336414), (76, 274443), (78, 267406), (93, 224276), (114, 182962), (124, 168207), (156, 133703), (186, 112138), (227, 91884), (228, 91481), (247, 84444), (372, 56069), (403, 51756), (454, 45942), (494, 42222), (589, 35412), (681, 30628), (741, 28148), (806, 25878), (908, 22971), (988, 21111), (1178, 17706), (1209, 17252), (1362, 15314), (1482, 14074), (1612, 12939), (1767, 11804), (2356, 8853), (2418, 8626), (2724, 7657), (2951, 7068), (2964, 7037), (3534, 5902), (4313, 4836)]